gee, I can't imagine why

Bill O'Reilly wonders why Dr. Tiller's supporters want to protect their anonymity
(Crooks and Liars)
---
Yes, why would supporters of a man who was gunned down in cold blood by a maniac with ties to extremists groups (who are very much free and able to act at any time) would want to remain anonymous? Just because O'Reilly may target them for death, as he did with Dr. Tiller? Just because there are far too many maniacs in this country? Just because it has become dangerous to act within the law in this country?

Yeah, gee, why...