>> why am i mr. pink? >> warlords were variously implicated in murder and bribery. as a matter of fact, mr. pink killed mr. white i. >> reporter: the pentagon contracts with security companies which hen pay afghans to guard base or supply convoys. what did this group buy with american taxpayer dollars? >> they were found to possess landmines i and large amounts of ammunition and were determined by the u.s. military to be in league with the taliban. >> reporter: in fact, the report says mr. white, ii, was holding a taliban meting in his home when u.s. and afghan troops raided it. the armed services committee investigated 125 contracts like this and found the pentagon didn't have the manpower to oversee its own contracts. the pentagon says it has now hired 300% more personnel to audit contracts in the field. and general david petraeus has made commands in afghanistan