Are they protected? And if that's so, how did the original imports get into the country?

(I know that bearded dragons have some awful health problems which are likely tied to the large captive population in the states coming from a small number of wild individuals. I'm concerned that may happen to Angolans... that and, of course, they'll be interbred with the more-numerous ball pythons, and it'll be increasingly difficult to find true pure Angolans.)