After a weeklong stand-off, Minneapolis-St. Pual nurses nurses and their hospitals appear headed back to the negotiating table. Six hospital groups—representing 14 hospitals—e-mailed letters to the union representing 12,000 nurses asking to restart talks and to include a federal mediator. The nurses had overwhelmingly voted on May 19 to authorize a one-day strike. Since then, each side has accused the other of not doing enough to avert what could be the biggest strike in U.S. nursing history, the Minneapolis Star Tribune reports.