A federal judge has blocked Aetna's proposed acquisition of Humana.

A now-defunct medical laboratory contends the FTC doesnt have authority to regulate the cybersecurity practices of medical laboratories.

"Investigators with the California Department of Insurance will investigate new allegations of fraud and misconduct made by former Prudential employees."

Aetna will soon defend its proposed takeover of Humana in court, but without the conflict associated with the Anthem-Cigna case. Here's what you need to know.

As the trial on the Anthem-Cigna deal opened today, Anthem's lawyer sought to discredit the DOJ's claim that the megamerger would squash competition in the health insurance industry.

Anthem and the DOJ submitted their 'pre-trial briefs' to the presiding judge, who has set trial for Nov. 21. Anthem sees its proposed merger as a 'procompetitive' action, while the DOJ sees harm for consumers.

Anthem and Cigna say their correspondence is irrelevant to the federal antitrust case.

Lawyers defending the $37 billion deal between Aetna and Humana accused the DOJ of undermining the insurers' ability to mount a defense in the case.