Overview: 2011/08/16 Headlines: 89 Killed in Iraq's Deadliest Day of 2011; Death Toll from Syrian Assault on Latakia Hits 34; Rebels Advance on Tripoli amidst Talks in Neighboring Tunis; Obama Begins Midwest Bus Tour as Approval Rating Drops to New Low; Rick Perry Joins GOP Candidates on Campaign Trail; 1 Palestinian Killed, 5 Wounded in Israeli Bombings of Gaza Strip; Israel Approves New Settlements in West Bank; U.N. Probes Food Aid Theft in Somalia; Judge Halts Broadcasting of Mubarak Trial; Israeli Lawmakers Meet on Economic Protests; U.N. Report Finds Potential War Crimes in Sudan; Shell Oil Rig Spills into North Sea; Global Food Prices Approaching 2008 Levels; Portions of Arizona-Mexico Border Fence Collapse in Flood; Immigrant Rights Activists to Protest Obama on "Secure Communities" Expansion; Google Acquires Motorola Mobile in $12.5 Billion Deal