It did not help matters that , after the July 7 terrorist attacks in London , Christophe Chaboud , France 's antiterrorism coordinator , speculated publicly , and incorrectly , as it turned out , that the explosives used in the July 7 attacks appeared to be '' military '' quality , and Interior Minister Nicolas Sarkozy suggested that part of the cell responsible for the July 7 terror attacks in London might have been arrested before and released .