Plot: 2012/04/03 Headlines: Shooter Kills 7 at Christian College in California; Obama Urges "Unelected" Justices Not to Overturn Healthcare Law; Supreme Court Approves Strip-Searches for All Arrestees; New Santorum Ads Compares Romney to Obama; Planned Parenthood Clinic Firebombed in Wisconsin; Thousands of Immigrants Arrested in Nationwide ICE Raids; Syria Vows to Withdraw Military Units from Towns; U. N