FILE - In this Nov. 24, 2012 file photo, Bangladeshi firefighters battle a fire at the Tazreen garment factory that killed more than 100 people, in the Savar neighborhood in Dhaka, Bangladesh. A delegation of the U.S. Trade Representative’s office is on a five-day visit to Bangladesh ending Wednesday, Sept. 23, 2015, to see the improvement of safety standards at factory sites and changes to legal documents allowing for wider workers’ rights, key conditions for regaining the Generalized System of Preferences facility under which the United States allows imports of more than 5,000 goods from 122 of the world’s poorest countries with low or zero-tariff benefits. The trade benefit was withdrawn after the collapse of Rana Plaza, a building complex housing five garment factories outside the capital, Dhaka in 2013. he collapse of Rana Plaza and a fire at another factory, Tazreen Fashions, that same year left about 1,500 workers dead and hundreds injured. (AP Photo/Hasan Raza, File)