Facebook has run afoul of the H1B Visa program, by failing to properly advertise positions in the United States, or even consider US born workers. Now, when you can’t find talent, using the program is good. But if you aren’t bothering to try, then it’s clear abuse of the system, and fully illegal. Facebook has stated they are cooperating and working to resolve the situation, but with 2600 workers involve, it’s many millions of dollars on the line for Facebook.
The DOJ claims Facebook engaged in “intentional and widespread violations of the law.”