Nurses at 12 of 13 Twin Cities hospitals have rejected a contract proposal and say they'll strike when their contract runs out on May 31st. Nurses at North Memorial Medical Center in Robbinsdale ratified their contract after hospital management broke ranks with the other hospitals by offering better terms. The union says the vote allows 7700 nurses to strike on June first. They say a voter turnout of more than 80 percent should send a strong message to the hospitals that nurses are prepared to mount the metro area's first major nursing strike since 1984 unless they get a better deal. Minnesota Public Radio's Tom Scheck reports...