 For NPR News and the Twin Cities, I'm Perry Vanelli. Hundreds of Minneapolis park workers are on track to strike over the 4th of July, one of the busiest weeks for the city's parks. The union announced strike plans today after more than 15 hours of negotiating with the park board and another seven months of failed negotiations prior. The union says the latest offer misses the mark on sufficient wage raises and hazard protections. Park keeper Hunter Hoppe assembled picket signs. He says he's not paid enough.