I don't recall Sasuke ever being a member of Akatsuki but I believe his older brother Itachi was part of that clan.
Sasuke was not a member of the Akatsuki you troll, and he knew about what Nagato did after it already happened so what do you want him to do, he already used Thotbitchdara to get EMS then he went on his way to kill him and he helped Itachi kill Kabuto and decided to protect Konoha and made Orochimaru revive the Hokages to help in the war.
Is this a late April fools joke?