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 recent case of In re Tousa, Inc. (Official Committee of Unsecured Creditors of Tousa, Inc., v. Citicorp North America, Inc., Adv. Pro. No. 08-1435-JKO (Bankr. S.D. Fla., October 13, 2009)) has attracted considerable attention – and dread – in the banking and legal communities.