The London police seem to have a new timeline that fits with this hunch:
Transit officials originally said Thursday's blasts occurred over a 26-minute span, but computer software that tracked train locations and electric circuits subsequently determined the first blast shattered the rush-hour commute at 8:50 a.m in Aldgate station, east London, with the next two erupting within 50 seconds.
A fourth explosion tore through a double-decker bus near a subway entrance, killing 13 people, nearly an hour later.
Saying that the bus bomber was heading toward the target means you have to assume that the terrorists were not in fact trying for a time-on-target blow to maximize the death toll by minimizing the ability to react to an early bomb. So why did the other three go off within 50 seconds of each other? It makes no sense that the bomber was going toward a target.
So what target was an hour earlier on the bus route? Will all the cameras in London be able to identify who got on the bus with a bomb and where the terrorist got on?
And of course, what neighborhoods were the bus scheduled to go to later on the route? Any mosques nearby?