Little Tommy Fufu will be on t.v. today with Tony Snow.....it'll come up, and I'm sure he'll BLAME BUSH for the sniper attacks.
I doubt it. Frankly, I thought that the Falls Church murder was the "finale", given that it was seemingly riskier and "inside the beltway". Now, I'd lean towards a decreased frequency of one every two or three weeks.
The motivation, whether Islamic terrorist, disaffected American, mercenary or "lone nut", is more likely to be something in the past than and anticipation of the future.
Some months back, I recall reading a post about Russian women snipers being rather effective against Russian forces in Chechnya. I think their motivation was mercenary.