For most of its history, the United States' seat at the forefront of innovation has gone unrivaled. Thanks to its natural geographic strength, ample access to capital, top-tier education and expansive government-funded research, the nation has pushed the boundaries of science like no other. But as any bodybuilder will tell you, true strength requires upkeep. And the proposed budget cuts of the newest U.S. administration have many American scientists -- and Washington's foreign rivals -- questioning whether the United States is about to lose its competitive edge....