The US is concerned because China has increased it's defense budget by 17 percent because it's unclear as to what China's intentions are. Even with the Chinese increase, it is still but a fraction of what we spend on our defense budget ourselves. We spend nearly as much as the rest of the world combined does on our military, and yet, we are still worried about national security in this election.
The economy is slipping into a recession, the dollar is falling as the price of oil rises, and all any of our presidential candidates can use to mobilize voters is fear. Not fear that the economy is in rubble, but fear of attacks from people with no standing armies on the other side of the world. People, you have been played.
Since we are outspending the rest of the world on security, we should be fairly secure, whether it's a high noon or three o'clock in the morning. If we are not, than we are spending way too much money on a system with no guarantees. The US is involved in two wars, fighting the alleged enemy, which has not made of safer than we were before the wars, and has, in fact attracted more people to the cause of the "Islamofascist". These wars, which were supposed to be relatively cheap(around $60 billion, according to administration officials) has actually cost us trillions of dollars. They are a drain on our economy and yet not one single presidential front runner has suggested we end these boondoggled quagmires.
There is one candidate who thinks we should cut the huge, bloated, wasteful military budget, or that we should reverse U.S. policy in the Middle East. Unfortunately, the nation of television-watchers, with their minds turned to mush from being fed a diet of constant fear are being herded like lambs to slaughter by the corpocracy's lesser of two evil strategies that will have people actually not voting for a decent candidate with good ideas, but against a candidate with whom they do not like.