"A legislative compromise should make it "less painful" for Washington to study the cost of modernizing its nuclear arsenal, one congressional source says. At issue is an Energy Department plan to create interoperable nuclear warheads capable of multiple tasks. The first such weapon that Energy contractors would develop would be called the IW-1, envisioned as having the ability to replace both the Air Force W-78 warhead -- currently fitted on ground-based ballistic missiles -- and the Navy W-88 warhead, used on submarine-based missiles. In Congress, the plan has prompted concerns from both sides of the aisle, with lawmakers suggesting that the Obama administration should first compare its cost to that of an alternative plan under which it would simply refurbish the existing two warheads." http://www.nti.org/gsn/article/compromise-bill-could-make-nuclear-warhead-cost-study-less-painful/