HERE’S A LENGTHY story suggesting that the government is taking the possibility of terrorism in the D.C. sniper case more seriously than it appears. I certainly hope so. But I’m kind of tired of this pattern of treating terrorism as almost unthinkable. That sounds like what’s at work here, and it’s irritating, as Matt Welch wrote after the Hadayet/LAX shooting, to be treated as “children who need to be lied to.”