I don't know. I honestly never read what he said. I figured it was just liberal whining and that if it was important then it'd be overwhelmingly known. I guess it wan't important enough.
He was referring to these:
1. a security company contracted to provide thousands of security personnel who did not deliver on their contract. The Brit military got called in to fill the breach. Police forces from around the country had to send extra officers to London to back up their police presence... leaving other areas of the country with less police.
2. Union workers undertaking passport control threatened to strike over pay and conditions the day before the games started.
3. London taxi drivers also threatened industrial action over the use of 'Olympic lanes' on the roads.
It was a clusterfuck in the run up to the games. Romney was right. The Brits had some wheels to put back on... fast.