So NSA has enough silicon to boil oceans and explode supernovae stars? That's what is required to brute-force 128-bit and 256-bit keys.
As for algorithmic breakthroughs - even in the case of DES and differential cryptoanalysis (the most well-known NSA breakthrough) the threats were mostly theoretical.
It's highly unlikely that they have a practical attack against widely-used ciphers that allows to recover keys without using 2^80 bytes of chosen plaintext or anything similar.
Of course, NSA might certainly use careful side-channel attacks or they might be able to brute-force keys with insufficient entropy.
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