As a house mouse, I can tell you that you should disclose ANYTHING that might show up on a credit report, criminal record, whatever. The NRC issued new security orders in January 2003, that basically makes them look for EVERYTHING now. If you have a bankrupcy, disclose it. They probably won't bother you about it if you admit it up front, but trust me, they will find out if you try to hide it. We've had career folks get dragged in to security to explain things they "forgot" about, and even things that happened years ago. For the old dogs who've been employed by a utility for 20 years they will do some forgiving, but a new employee? Not very likely. Human Resources could care less. Their only concern is making an offer or not. Those people aren't doing the background checks anyway. If you are military, it will be easier for a background check, but expect to provide a 10 YEAR HISTORY. Things have changed remarkably in the industry since September 11. Good Luck!!!