* Headlines for March 9, 2007 * Protests Sweep Latin America as Bush Begins Five-Nation Tour * Colombian Opposition Leader Gustavo Petro Defies Threats to Challenge Ties Between Death Squads and US-Allied Columbian Government * Council on Hemispheric Affairs’ Larry Birns on Bush’s Trip to Latin America: “A Matter of Low Expectations and Utter Despair” * As Bush Admin Keeps Kidnap, Torture Victim Maher Arar on “No-Fly List,” New Play Brings Arar’s Ordeal to the Stage * Tacoma Peace Activists Stage Blockade of Stryker Vehicles Headed for Iraq