Setting
Although Austin seems safe, there is rumor that the Pandora vaults run underground the main skyscraper. Should something happen, say an explosion, the fallout would be enough to level everything in the surrounding area. To put it bluntly, Austin would be lost.
A bit away from the skyscraper and government figures is the Enclave Red Ops (ERO). The Enclave is a "secretive political and military" organization. These guys are pretty much the kids of the pre-fallout US government. They're the guys who are actually running the show above ground. They know the truth behind the war and they're doing their best to keep it a secret.