EL PASO, Texas — An alleged Mexican gang leader named to the FBI's 10 Most Wanted list may have surgically altered his face and changed his finger prints to hide his identity, federal investigators said Wednesday. Eduardo "Tablas" Ravelo was added earlier this week to the wanted list that includes the likes of Osama Bin Laden and Boston crime lord James "Whitey" Bulger. "From what I've heard, it's my understanding he may have had ... plastic surgery and manipulated his finger prints," said Samantha Mikeska, the FBI's lead investigator in a 5-year-old probe of Ravelo's Barrio Azteca gang. If Ravelo...