Overview: 2012/03/22 Headlines: Trayvon Martin’s Parents Join "Million Hoodie" March in NYC; Mississippi Teen Gets Life Sentence for Killing Black Man; Romney Aide Likens Platform to "Etch A Sketch"; U.N. Security Council Backs Syria Plan; Mali Soldiers Stage Coup, Suspend Constitution; Suspected Gunman Dies After Standoff in France; Clinton: Afghanistan, U.S. Nearing Deal on Night Raids; Oil Execs Face Charges for Brazil Spill; Colombian Troops Kill 39 FARC Rebels; U.S. Army Opens Review After PTSD Scandal; DHS Eyed Occupy, Anonymous Before Protests Began; Suspect Arrested in Firebombing of Texas State Senator's Office;$