Half the federal agents who were investigated for allegedly attending sex parties with prostitutes in Colombia received financial bonuses during the investigation or afterward, according to a new internal review of the Drug Enforcement Administration’s handling of the scandal. Justice Department inspector general Michael Horowitz issued a report on Thursday analyzing the aftermath of the internal probes of DEA agents in Colombia for allegedly patronizing prostitutes. The allegations were originally investigated in 2010, but the issue created a firestorm earlier this year when the details became public…. DEA policy prohibits employees from receiving promotions, awards or other favorable personnel actions...