Black footed ferret as a pet?

i have two sable ferrets already, bandit is 2yrs and the rascal is almost 1yr. but i'm wondering if it's possible to have a black footed ferret as a pet. i'm thinking 'no' since they are endangered and mainly wild instead of domesticated, but if anyone has info please let me know. i would love to add one of these cute little guys to my family.