[nl]

See this is a great example of the problem.

1) Did NSA modify Cisco routers? Yes

2) Did NSA get a backdoor in Dual EC_DRBG? Yes

3) Did NSA get a backdoor in the CNSA algorithms? There is no evidence to suggest they have and plenty the other way.

The original claim was (3) but the "NSA does stuff" thing overrides any attempt at discussion of that specific piece of misinformation.