WASHINGTON, July 7 -- Rep. Chellie Pingree, D-Maine, issued the following news release: * * * Pingree Unveils Bill to Protect Aid Workers in Global Conflict Zones * Congresswoman Chellie Pingree (D-Maine) is leading an effort in Congress to protect humanitarian aid workers operating in conflict zones and ensure accountability for those who target them. Joined by U.S. Representatives Jim McGovern (D-Mass.), Rashida Tlaib (D-Mich.), Madeleine Dean (D-Pa.), Mark Pocan (D-Wisc.), and Alexandria  more PR