The Defense Department's new spending proposal slashes $500 million from the Defense Advanced Research Projects Agency -- the U.S. military's flagship research and development shop -- and includes $300 million for a controversial program to modernize the U.S. military's nuclear weapons arsenal, according to internal budget documents. Tina Jonas, the Pentagon comptroller, approved these two budget actions last month along with a wide range of final adjustments to the U.S. military's fiscal year 2008 spending request in program budget decision...