A new congressional report spells out in detail how the military would become "hollow" if Congress´ supercommittee fails to agree on deficit reductions, triggering $1.2 trillion in automatic spending cuts. The Army and Marine Corps would lose 200,000 troops, bringing active strength "well below" pre-Sept. 11, 2001, levels, and the armed forces would not be able to carry out its essential mission, says a 14-page analysis by the Republican majority staff of the House Armed Services Committee. The report also says the cuts would deplete weapon systems, further degrading the fighting capabilities of the armed forces. Defense Secretary Leon E....