And the reason for the unmasking request from the article:

>@ALT_uscis is one of a string of accounts claiming to be operated by rogue government employees, formed in the wake of Donald Trump’s inauguration. It’s unclear whether any of the accounts are authentic — including @ALT_uscis — although many purport to offer an insider perspective. The Trump administration has responded aggressively to leaks in the past, including on-the-spot phone checks of White House staffers suspected of sharing information with the press.

Imagine George W. Bush has his stooges trying to undermine and overthrow Obama if you don't see why this would be problematic for current administration.