The United Steelworkers Union says it has made no progress on job safety assurances with Nippon Steel. Union leaders met with executives from the Japanese company buying U.S. Steel, last week in Pittsburgh. The union has accused U.S. Steel of an ongoing lack of interest in resolving union labor questions they’ve had about the Nippon merger since it was announced in December. Leaders say they also sent a list of formal grievances to U.S. Senators about how the union was left out of the sale and how the sale would threaten not only jobs, but national security. The nearly 15-million-dollar proposed sale remains subject to a review by the Committee on Foreign Investment in the United States.