China : Chinese is expanding its Navy , investing in weapons . Officials worry China is trying to break into U.S. military secrets . The annual report from the Pentagon to Congress says China 's total military spending in 2007 was between $ 97 billion and $ 139 billion , but it is hard to tell exactly how much was spent and on what . ` ` Intrusions '' have already happened , officials say , though info was not classified . Pentagon : China 's lack of intelligence makes it hard to know the extent of activity .
China : Chinese is expanding its Navy , investing in weapons . Officials worry China is trying to break into U.S. military secrets . ` ` Intrusions '' have already happened , officials say , though info was not classified . Pentagon : China 's lack of intelligence makes it hard to know the extent of activity .