Homeland chief warns against anti-Muslim backlash   Kan aims to devise longer-term growth strategy by year-end+   Police: Suicide bomb in Pakistan market kills 12   Thousands in West Bank urge Abbas not to quit   Mickelson rallies to win HSBC Champions   LEAD: Thaksin to give economics lecture in Phnom Penh: Hun Sen+   Chinese premier pledges funds, aid to Africa   Landmark health bill passes House on close vote   Afghan Taliban deny have missing U.S. troops' bodies   Homeland chief warns against anti-Muslim backlash   Japanese protest US base before Obama visit   Soccer: Cerezo, Sendai promoted to top flight+   Police: 1 killed, 3 injured in shooting near Vail   Germany to celebrate memory of Berlin Wall falling   Germany celebrates memory of Berlin Wall falling   Suspect identified in Seattle police killing   Dalai Lama ignores China protests, visits Indian town bordering Tibet+   Fuel convoy hit in eastern Afghanistan   China to boost aid to Africa as ties blossom   Problems facing Minamata disease sufferers discussed at Tokyo symposium+