"I wouldn't be surprised if this had happened to some young agents. But 'the best of the best' as they put it? This does not smell good."
Despite the fact that the tradecraft in the Boston bombing itself was sloppy, the removal of witnesses is operating at a world class level. Witness removal is a large part of the reason behind the use of drones in targeted assassinations, and witness removal seems to be a large part of Obama's way of governing. He has learned from watching the problems of Nixon, Reagan, and Bush.