In Minneapolis, Minnesota earlier this year, the Department of Homeland Security sent no match letters or a variant to around 1200 janitors employed by the major corporation ABM informing those employees that there was a mismatch between their Social Security numbers and other information. They were required to provide documentation by October, and when all or almost all didn't, ABM fired them; presumably all or virtually all are illegal aliens (link). However, rather than trying to deport them, DHS simply concentrated on the company. Needless to say, that makes it easy for a fired illegal...