Several stories cover (Freshman Democratic Representative of Connecticutt's 2nd District) Joe Courtney's ability to quickly figure out how to get things done in Congress. He's stoking fears of China and using it to support further production of nuclear powered submarines, which happen to be made in his district. 6,000 jobs are on the line.
Since Courtney is a freshman, and won by only 83 votes, he's vulnerable. Demorats are pumping as much money in his district as possible to ward off a challenger. So what if it leads to an arms race? It's just pork.
Read up on this here: Matt Yglesias, Brad Plumer, and the Washington Post.
