The Minnesota Nurses Association and 13 Twin Cities Hospitals are negotiating new contracts for nearly 9 thousand nurses. The current contract is up on May 31st and both sides say they need to create a system that will attract and keep nurses in the field. The nursing union says a shortage of nurses has increased workloads , causing some to retire and others to seek new jobs. They say local hospitals have to increase pay levels dramatically to keep nurses working. Minnesota Public Radio's Tom Scheck reports...