. >> warner: he gets better odds on a brighter future for his country. god willing, he said, but iraqis will have to do the work. >> lehrer: tomorrow margaret will have a conversation with vice president biden who is in iraq. >> woodruff: now to another country right next to the united states that also is coping with violence. mexican officials have announced the arrest of a major target in that country's drug wars. marched before the cameras this morning under heavy guard, edgar valdez villareal was a long way from his high school football days in texas. his coach had nicknamed him the barbie for his green eyes and fair skin. the moniker stuck. but now at 37 years old, he stands accused as one of mexico's top drug traffickers. the alleged king pin was arrested yesterday outside mexico city without incident. >> this arrest is the result of intelligence work in actions carried out by the federal police. throughout this investigation we exchanged information with various united states agencies as well as the national defense and navy secretary and the atto