On 13th August 2013, the US Department of Justice (DOJ) and attorneys general from six US states and the District of Columbia filed suit in the US District Court for the District of Columbia to block the merger between US Airways and American Airlines. Days before, a group of American Airlines customers filed a claim that the merger would violate Section 7 of the Clayton Act.

Legislation enabling the immediate liquidation of IBRC (formerly Anglo Irish Bank) was signed into law in the early hours of 7 February. Draft legislation was published on 6 February following media speculation that the Irish Government was preparing plans to liquidate IBRC and was promptly brought before both Houses of the Oireachtas (the Irish Parliament). The Minister for Finance stated that immediate action was necessary in order to prevent any action being taken which could have put IBRC’s assets at risk.