This is hardly worth mentioning when talking about 0day markets, but what stops ...

0xdeadbeefbabe on Jan 28, 2015 | parent | context | favorite | on: On the ubiquity of web-enabled microphones

This is hardly worth mentioning when talking about 0day markets, but what stops a state willing to pay $500K for an exploit from taking the hacker(s) back home? Is it ethics?