The US' Federal Deposit Insurance Corporation hasn't had an easy time of things in recent years: it's been the subject of numerous hacks in recent years, starting in 2010. And now, the FBI wants answers. Reuters sources understand that the law enforcement agency is investigating how the intruders got in, and that the FDIC believes the Chinese military sponsored the attacks. While the full details of the initial hack aren't available, it took a while to recover. The FDIC took until "at least" 2012 to make sure that its systems were clean, according to an internal probe.