British police charged two additional suspects in the failed July 21 attacks. Ibrahim Muktar Said, 27, who is accused of trying to detonate a bomb on a bus in east London, and Ramzi Mohammed, suspected of attempting the Oval underground train bombing, were arrested in raids in west London on July 29, police said.All three July 21 bombing suspects in British police custody have now been charged. A fourth, known both as Osman Hussain and Hamdi Issac, was arrested in Rome and is being held there on international terrorism charges. The three face charges of conspiracy to commit murder; attempted murder; making or possessing an explosive substance with intent to endanger life or cause serious injury; and conspiracy to use explosives.