The wife of one of the three Amman suicide bombers has been arrested on suspicion that she planned to carry out a fourth attack. "My husband wore one belt and I another - he told me how to use it," Sajida Mubarak Atrous al-Rishawi said on television Sunday in an apparent confession. "My husband executed the attack. I tried to detonate and it failed," the Iraqi would-be suicider said. Police say that she was the sister of a lieutenant of Abu Musab al-Zarqawi, the suspected leader of al-Qaeda's Iraqi cell. The same group has claimed responsibility for this week's triple bombing on Amman hotels. Fifty-seven people were killed in the almost simultaneous explosions.