On Monday the crazy guy killed 31 people in a dorm and an engineering building at Virginia Tech. The country has had non-stop news coverage of this for days.
It is truly a horrible thing.
But, for comparison, that same day, some 45 people were killed by drunk drivers (using 2005 statistics). Drunk driving is much more preventable than predicting the behavior of crazy people.
Needless to say, Iraqis die at nearly twice that rate due to suicide bombs and militia violence. But I bet most Americans never make that connection.