headlines from yahoo.com 12:06pm of 12:06 p.m. EST ⢠U.N. says Iran refuses to halt nuke development ⢠Chemical raid in Iraq raises fears of new tactic Dirty bombs ⢠Rice faces uphill battle to revive Mideast peace ⢠Civil union ceremonies begin for N.J. couples Waiting is over ⢠Reports show test scores don't correspond with grades ⢠Scientists add several shark species to endangered list ⢠Anna Nicole Smith judge sets case deadline