Detective Enrique Chavez logs weapons from a gun buyback in Miami. Arizona's new law requires municipalities to re-sell weapons recovered in such programs. Joe Raedle/Getty Images hide caption

itoggle caption Joe Raedle/Getty Images

Bangladeshi rescue workers take a break Friday on the rubble of a building that collapsed Wednesday in Savar, near Dhaka, Bangladesh. By Friday, the death toll reached 300 as rescuers continued to search for injured and missing. Kevin Frayer/AP hide caption

itoggle caption Kevin Frayer/AP