NEW : The new agreement means more troops will guard the Olympics . The government was already sending more military personnel to cover shortfalls . Security : G4S has said it ca n't supply the number of guards it promised . CNN 's Dan Rivers contributed to this report . British lawmakers forced the G4S chief to concede security was a ` ` shambles ''
NEW : The new agreement means more troops will guard the Olympics . The government was already sending more military personnel to cover shortfalls . Security : G4S has said it ca n't supply the number of guards it promised . British lawmakers forced the G4S chief to concede security was a ` ` shambles ''