At noontime on the East Coast, the BBC is reporting that at least 33 people died in a series of four explosions in London during the morning rush hour there. Reports indicate that three of the attacks occurred in the underground subway system and one on a double-decker bus. Officials suspended underground service in Britain's capital and Prime Minister Tony Blair left the G-8 summit in Scotland to coordinate the government's response, according to news reports. Assaults on transportation and commercial targets during rush-hour traffic previously occurred in Madrid in 2004, and on Sept. 11, 2001 in the U.S. Tourists who, in addition to workers, may have been targeted in today's attack, according to some initial reports, have also been targeted in past bombings in Tunisia, Kenya, and Jakarta and Bali in Indonesia. For details on the economic impact of the latest terrorist strike, read this story from the BBC and this story from the New York Times.