How irresponsible of Rep. Tom Tancredo to say that the United States should retaliate to a nuclear detonation on American soil by bombing Islamic holy sites, including Mecca. The Colorado Republican would do well to apologize for his intemperate remarks. . . There may be a thin line between "tough" and "reckless." If the culprits are fringe extremists, why declare war on the entire religion? Mecca is the holiest city in Islam. Bombing it would inflame 1 billion Muslims, many of whom deplore the terrorists who kill in their name. The global war on terrorism is not a war against Islam. It is a war against a small number of extremists who believe their faith compels them to kill non-believers -- and the nations that nurture these murderous activities. U.S. policy recognizes this fact. As President Bush said in the days following 9/11, "any nation that continues to harbor or support terrorism will be regarded by the United States as a hostile regime." The proper response is to retaliate forcefully and decisively against the regimes that support terrorism, not to lash out recklessly against symbolic targets and slaughter innocent people. The latter is what our enemies do.