There will always be crazy guys. Trigger happy murderers and butchers will continue to lurk, looking for an opportunity to shed blood.
In recent times, we have seen that happen. In January 2011 Rep. Gabrielle Giffords of Arizona was shot in the head when an assailant opened fire outside a grocery store during a meeting with constituents, killing six people and wounding 13 others.
On July 20th this year a heavily armed man entered a movie theater in suburban Denver and opened fire, killing at least 12 people and injuring 50 others.
Less than a month later, even while the Aurora thater tragedy was fresh in the minds of people, a man by the name Wade Michael Page entered a Sikh shrine in Oak Creek, Wisconsin and opened fire at the Sikh devotees who had come for the Sunday congregation. The shooting left 6 Sikhs dead. and at least 3 injured. Of them, one succumbed to his injuries in the hospital. Page himself was killed by a police officer.
Such lunatics are a part of any society. They cnnot be wished away even in the most civilized society.
However, they may not cause much harm provided the law enforcing authorities are as good as the brave police officer Lt. Brian Murphy who showed exemplary courage and dedication to his duty when he continued to direct his colleagues to take care of the scared and shocked Sikhs in the shrine rather than attend on him, even though he was in a bad shape, having been shot nine times from close range.
They cannot create fear in the minds of Americans so long as there are people who are akways around to share the pain and grief of others, as was abundantly clear in the wake of Oak Creek shootings. The whole of America stood for the Sikh community. From President Obama to City administration, officials not only sympathized with the community but also ensured the community felt secure. People from various faiths joined the community in offering prayers for the victims and their families. Other Indian communities rushed to Sikh shrines all over USA to express solidarity with the Sikh community and to share their grief.
So long as this bond of togetherness is there no terrorist, no loony murderer can cause harm to America or Americans.