Bitcoin uses Elliptic-Curve Cryptography, not RSA.
But yes, BC transactions are public, have always been, be design. This is not news.
You copy n' pasted the Wikipedia article. At least link to it.
https://en.wikipedia.org/wiki/Differential_cryptanalysis
See also Confusion and Deffusion, that properties that make SHA hashes and AES block cyphers highly resistant to the attack.
https://en.wikipedia.org/wiki/Confusion_and_diffusion
Not just the NSA. It's mainly the FBI's interest. The whole transaction ledger is public.
https://gizmodo.com/a-friendly-reminder-bitcoin-is-not-anonymous-1682885318