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.

The Third Parties (Rights against Insurers) Act 2010 received Royal Assent on 25 March 2010. The Act modernises the Third Parties (Rights against Insurers) Act 1930 by streamlining the procedure by which a third party claimant can recover compensation from the insurer of a defendant.