* Headlines for July 19, 2007 * Dems End Debate on Iraq Partial Withrawal Bill After Failing to Overcome GOP Filibuster * Despite Reports Showing Nearly Half of Foreign Militants in Iraq Are Saudi, White House and Lawmakers Keeping Sights on Iran * Sami Al Haj and Bilal Hussein: Their Names Mostly Unknown in U.S., Jailed Journalists Have Spent Combined Six Years in U.S. Military Prisons Without Charge