Members of the Virginia congressional delegation today challenged the legal basis of Defense Secretary Robert Gates' recommendation to close U.S. Joint Forces Command , lambasting the Defense Business Board's study -- on which the move to close the Virginia facility was partially based -- as "superficial research" lacking "analytical rigor." In a letter sent to Gates today , Sens. Jim Webb (D) and Mark Warner (D) and Reps. Glenn Nye (D), Randy Forbes (R), Rob Wittman (R) and Bobby Scott...