Martín Barrios Hernández...[was] arrested December 29... Barrios is accused of attempting to blackmail the owner of several factories that assemble clothing for export... Coincidentally, Barrios had been pursuing legal channels to obtain severance pay for 163 employees recently fired from one of the factories, after demanding that working conditions comply with the law ...Amnesty International wrote that Barrios' "arrest and prosecution may be an attempt to prevent him from carrying out his legitimate human rights work."... Gap Inc.'s vice-president of Social Responsibility, Dan Henkle, has written to Puebla State Governor Mario Marín Torres, urging the governor "to take immediate action to investigate" the charges against Barrios, and his arrest and imprisonment, and to "take appropriate steps to ensure Mr. Barrios' safety."... [also refers to Guess, Levi's (Levi Strauss), Tommy Hilfiger]