The former security minister Lord West, who had responsibility for the security of the Olympics from 2007-10, has said that drafting in soldiers to guard the games at the last minute is "not very clever".
He told ITV News he believed there had been a "triumph of optimism at G4S" and that the Government should have watched the company more closely.
ITV News learns that Mr Cameron hadn't squared his watered-down Lords plan with Nick Clegg and the Lib Dems.
In his final Prime Minister's Questions before recess, the man in question looked as though he needed a holiday more than ever
The Government has retreated on its plans to reform the House of Lords after dropping a vote on the timetable for legislation.