Meanwhile, the Justice Department has dropped a series of allegations against a Guantanamo Bay prisoner who’s said he was tortured in US custody. In May, military prosecutors accused British resident Binyam Mohammed of plotting to explode a radioactive “dirty bomb,” blow up apartment buildings here and release cyanide gas in nightclubs. But prosecutors now say they’re dropping the charges. Mohammed’s defense attorneys say the Justice Department is withdrawing the allegations to avoid having to turn over evidence Mohammed was abused. The lawyers say interrogators obtained Mohammed’s false confession through torture at a Morocco prison.