With a Tory mutiny growing almost by the hour, the PM bows to pressure and retreats on when the changes will be introduced.
"When you sign on for a contract you commit yourself... it will have to be dealt with," says Taoiseach Enda Kenny.
A top Mars executive says that if the UK leaves the EU without a trade deal it will result in higher prices and threaten jobs.
Police say five people have been hurt but "we are not using the words rampage or terror."