London 7/7 Bombings Kill 52

Four coordinated suicide bombings during London's morning rush hour kill 52 people and injure over 700 on three Underground trains and one bus. The attackers are British Muslims, all British citizens. The bombings mark the deadliest terrorist attack on British soil and demonstrate the threat of 'homegrown' radicalized individuals. The attacks follow two weeks before a failed second bombing attempt on July 21.