Sept. 11, 2001, may change forever the way Americans live their lives. A small band of men armed only with box cutters did what no other global superpower has been able to do to the United States. They struck terror in our hearts by demolishing in a single hour an icon of American enterprise, the World Trade Center. They went further in their daring attack by destroying a substantial section of the Pentagon, the symbol of our military might. They exploded horror and chaos into our collective lives in ways none of us had ever before experienced, not even the most seasoned war veteran. Thousands of people were murdered, millions of lives were disrupted, trillions of dollars of business and income were lost.

The nation and the world remain in shock at the unimaginable devastation that has become a defining moment for this generation.

They are the new breed of "terrorists," faceless people carefully programmed to destroy their enemy at all costs. They are likely to be educated, well-trained, blindly obedient to authority, totally dedicated to a religious-cultural ideology, living in a time zone of present fatalism, with few possessions and nothing to lose except sacrificing their lives for a higher cause.

They embody "creative evil" at its worst, and in a form that could become most terrifying to democratic nations everywhere.

In fact, this terrorist attack on U.S. sovereignty represents a new level of "creative evil" in which human intellect subserves the basest motives of violence and destruction. Thus, it is imperative not to underestimate the power and catalytic force of this new enemy. It is a shadowy force without identifiable territorial boundaries, but one that has the charismatic power to unite disparate allies in many nations and to clone kindred warriors with its fervent ideological mission and focused hatred toward America and its allies.

We cannot underestimate this evil

We have begun to appreciate the extent to which this complex, expertly choreographed terrorist attack was the end product of extensive planning, training and professional expertise that required financial resources and networks of co-conspirators living among us. They had to know how a dozen or more of their team members could breach airport security. They knew to select transcontinental jetliners filled to capacity with jet fuel that on explosion could melt steel girders. They had to understand enough kinetic physics and structural engineering to know the locations on the World Trade Center that would make it maximally vulnerable to their explosive attack. They had to know how to pilot commercial jetliners, how to disarm warning signals and how to enable four huge airplanes to fly in and out of our major urban centers undetected.

This creatively evil enemy cannot be underestimated any longer. Moreover, we have to change our perception of this attack as "senseless violence," as it has often been described. Of course, this tragic destruction of lives and property does not make sense to us because it is incomprehensible that any individual or group would engage in such evil deeds. Calling it "senseless," "mindless," "insane" or the work of "madmen" is wrong for two reasons. It fails to adopt the perspective of the perpetrators, as an act with a clearly defined purpose that we must understand to challenge it most effectively. And such negative labeling lulls us into thinking it is random, not comparable to anything we do understand, and is making us disrespectful of the high level of reasoned intellect behind these deeds, however distorted or diabolical it may be.

Constructive efforts at preventing future similar acts of international violence best begin with attempts to understand not only the "who" question, but the "what" question as well. Our national leaders will seek out those who orchestrated this destructive attack against our nation and eventually bring them to justice.

But even if the identifiable terrorist leaders were to be eliminated, would that stop future terrorism? Unlikely, unless we know what are the root causes of the hatred against America, unless the ideological, political and social bases of the mentalities of the next generation of potential terrorists are more fully appreciated and efforts to change them are engaged.

Evil has always existed in many forms and will continue to flourish in different ways in different places. Surely, there are individuals we acknowledge as embodying evil, just as Lucifer and Satan do--Hitler, Stalin, Pol Pot and other national tyrants. They are all dead, yet evil flourishes throughout the world with nameless conductors orchestrating ever-new violence. It is well for us now to go beyond our tendency to focus on dispositional evil as a peculiar property or characteristic of despicable particular individuals. Instead, we might consider focusing on the situational determinants of evil in order to recognize the generic forces of evil, to identify the breeding grounds of evil that can seduce even good people to become perpetrators of evil.

Even while acknowledging our individual and national need for retribution and punishment of the leaders of these terrorist attacks, we must also realize that without altering the fundamental sources of anti-American and anti-democratic beliefs and values in other nations, new replacements will emerge for each tyrant leader we punish or kill.

What research has found

Much psychological research reveals the ease with which ordinary people can be recruited to engage in harmful behaviors against their fellows. In one classic study by Stanley Milgram, the majority of ordinary American citizens who participated in it blindly obeyed an authority figure and administered what they believed were painful, even lethal shocks to a stranger. Albert Bandura showed that intelligent students were willing to be extremely aggressive toward other groups of students merely because they were characterized as just "like animals."

In another demonstration from my own laboratory, normal college students recruited to role-play prison guards became their roles in a matter of days, behaving with escalating violence and sadism toward their prisoners--other college students.

We know that a cult leader, Jim Jones, reverend of San Francisco's People's Temple, was able to program his followers to commit suicide, or to kill one another on his command; more than 900 American citizens did so in the jungles of Guyana. Research by John Steiner (an Auschwitz survivor) indicates that most Nazi concentration camp guards were "ordinary men" before and following their years of perpetrating evil.

Our focus ahead

Many more examples could be culled to illustrate reasons why we should not demonize these terrorists as an alien breed. Instead, we should focus on a better understanding of the mind-control tactics and strategies that might make even good people engage in evil deeds at some time in their lives, and that might recruit new generations of impoverished young people into lives of terrorism. We need also to acknowledge openly "the dark side of religion" in terms of how religiously based value systems can be perverted to justify and reward the most horrendous of human deeds. Unbridled evil has been carried out in the name of religion and condoned in the name of God over the centuries by most nations of the world, and still is.

The efforts of our military forces in tracking down and destroying the terrorist leaders has a collateral risk. It models revenge and retaliation at a national level that can become a stimulus for individual hostility toward innocent citizens in our own country whose ethnicity, religion or appearance might be similar to those of the terrorists. Research by Dane Archer shows that homicide rates increase dramatically following all wars, the same for victor or loser nations, presumably because individuals learn to use violent means of conflict resolution, as had been sanctioned by their national leaders. We cannot allow that transfer of hostility to develop because it fuels the cycle of violence started by the terrorists. Terrorists create terror; terror creates fear and anger; fear and anger create aggression, and aggression against citizens of different ethnicity or religion creates racism and, in turn, new forms of terrorism.

We must individually and collectively refuse to adopt the terrorists' devaluing of human life. If we do not, and we yield to the quiet rage of hatred that their vile deeds have generated in most of us; then our desire to destroy them at all costs allies us more with the forces of evil than of good. We have seen the enemy; do not allow it to become us. We have also witnessed the tremendous outpouring of positive emotions, goodwill and heroic deeds of Americans in response to this tragedy. We are giving money and blood, selflessly donating our skills and energies, and even sacrificing our lives to help others. This tragedy may in the long run help to nurture the best in us all; to rekindle civic engagement, to connect each more fully with family, friends and neighbors, to put community and nation before self interests. It may give us new reasons to be genuinely proud to be Americans who oppose evil with tolerance, compassion, justice and love.

It is time for American heroism to oppose terrorism. A new era has been ushered into our lives as individuals and as a nation. Heroism is to be defined not only as the sacrifice of life for others, but broadened to include the opening of ourselves to the needs of others. Heroes are ready and willing to share their precious commodities, like their time and sense of vulnerability with others in meaningful face-to-face encounters. They rise above the pressures toward mindless compliance and situationally induced conformity. They are both uniquely individual and uniquely socially focused. Heroic deeds reinforce the bonds of the human condition in ways that resist the forces of terror and evil. It is time to choose to be a hero in your own family and community.