News at Seven-Thirty highlights:teenager injured by a home-made bombk is in serious condition; Citibank charging excessive interest rate; ICAC intercepted phone conversations between lawyers and their clients in 2007; Obama’s economic stimulus plan won Senate approval; global financial market fell due to scepticism towards U.S. recovery plan; Israel facing weeks of political uncertainty; Hu Jintao's state visit to Saudi Arabia; Xi Jinping's meeting with Mexican President and business leaders; bus drivers demanding pay rise; mucor found in intestines of a group of patients at Queen Mary Hospital; conflicting statements between different mortuary staff.