In its final update, the CDC reports 20 known cases of salmonella infections in Maine and elsewhere. Investigators failed to determine how the beef got contaminated.

Punishing Steven Ricci, who has a history of sexual offenses, is complicated by his disabilities, the judge says.

Last fall, President Obama cited the Westbrook span as an example of U.S. infrastructure’s dire state.

The officials said Hannaford’s “high-risk practices” for grinding beef hindered the investigation, although other retailers probably also use those same practices.

Hedge-fund manager Anthony Chiasson, who grew up in Portland, faces charges of securities fraud in a scheme that pulled in $78 million in illegal profits.