By Chris CasteelStaff writerccasteel@oklahoman.comU.S. Sen. Jim Inhofe, visiting the U.S. border with Mexico on Monday, said the role of active duty military personnel at the border will be a major issue when his committee begins writing a new defense bill. Inhofe, the chairman of the Senate Armed Services Committee, said about 3,000 active duty troops are involved now in securing the southern border.Read more on NewsOK.com