Justice Dept. Will Seek to Block 2 Health Insurance Mergers. Health Insurance and Managed Care, Abelson, Reed, Mergers, Acquisitions and Divestitures, Picker, Leslie, Antitrust Laws and Competition Issues, Justice Department, Suits and Litigation (Civil), AETNA INC, Anthem Inc., Humana Inc, CIGNA Corporation, Patient Protection and Affordable Care Act (2010)