DOJ sues to block mergers between Anthem and Cigna, Aetna and Humana

The U.S. Department of Justice, along with attorneys general from Washington, D.C., and several states, sued to block Aetna's acquisition of Humana and Anthem's acquisition of Cigna, according to a press release.The agency alleged that "the transactions would increase concentration and harm competition across the country, reducing from five to three the number of large, national health insurers in the nation."

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