The revolving door between high-ranking Pentagon employees and the defense contractors receiving billions in government funding is more alive than ever, according to a report released last week by the Project on Government Oversight, a nonpartisan watchdog group. But since federal law permits the Department of Defense and contractors to avoid disclosing precise numbers, the report captured only a small slice of how many DoD officials have gotten jobs with contractors recently. Congress mandated in 2008 that DoD maintain a database with information about employees who end up working for Pentagon contractors, but POGO says the existing database is not fully public, despite lobbying from outside advocacy groups.