9/11 and 7/7: Mere coincidence?

Christopher Bollyn writes: "Can it really be a mere coincidence that a crisis management company was running a terror drill that simulated terrorist bombings on the very same London underground trains and stations at the very same time as duplicate real bombings were occurring? Should the fact that the very same coincidence occurred on the morning of September 11th 2001 when FEMA was conducting a simulated bioterrorism attack in New York raise any eyebrows?

"What about the fact that on the morning of September 11h 2001, officials at the Chantilly, Va.-based National Reconnaissance Office had planned and was running an exercise in which an errant aircraft crashed into one of its buildings?"