Rising deficits and ballooning costs of federal retirement and health care programs are poised to squeeze Pentagon weapon system modernization accounts, putting at risk U.S. military transformation plans that rely on big-ticket programs, according to a new study. These budget pressures will make it difficult -- if not impossible -- for the Defense Department to fund current procurement plans, including three different fighter aircraft programs, submarines, aircraft carriers and future ground systems, according to "Budget Policy, Deficits, and Defense: A...