Justices of the Supreme Court will today hear a second day of hearings regarding President Obama's health care overhaul.  In other headlines,  President Obama acknowledges a strained relationship with Pakistan from the nuclear security summit in Seoul, South Korea; civil rights leaders continue to call for the arrest of the  man who shot and killed teenager Trayvon Martin in Florida last month; and a  new poll from The New York Times and CBS finds 69 percent of Americans believe the U.S. should not be at war in Afghanistan.