Apologies, I stated above that the NSA did not 'force' the researchers to make changes but looking closer here it appears the user actually stated that, "NSA modified some parts from Keccak256 and released it as the current SHA-3 after ethereum release, that's the reason ethereum uses keccak256 and not sha-3."
This is unequivocally false. And we know that its false because there were no changes made to the actual cryptographic algorithm.
Here's an excerpt from Wikipedia that explains this well (Wikipedia does an excellent job of breaking down tech & math-related concepts; just don't consult that site for anything that falls outside of that topic).
>>Click here to continue<<