With the known NSA backdoor in Dual_EC_DRBG then many people within the NSA must have access to the backdoor constants (even if they don't directly realise it and have access to them within an application).

If Edward Snowden was willing to give up his salary and liberty for what he thought was the moral thing to do then I think it's reasonable to assume there must be many more people within the NSA who are willing to leak secrets for money or loyalty to nation states, corporations or terrorist groups.

Some of those people will have given the Dual_EC_DRBG constants or applications that will crack cryptosystems using that PRNG to 'bad' actors.