National Nuclear Security Administration officials struggled to notify some employees fired Thursday that they are now due for reinstatement, as they lost access to government email. The agency, which oversees the U.S. nuclear stockpile, asked current employees to help contact those affected. The mass terminations are part of a broader federal downsizing effort under President Donald Trump and have sparked legal challenges. The NNSA firings coincided with a Russian drone strike on Chornobyl, raising concerns about nuclear risk monitoring.