Read the full U.S. Customs and Border Protection ... The results of our operation, named “Return to Sender” are as follows: 78 arrests (all subjects unlawfully present in the U.S.) The ...

Here's how to stop it – write "Return to Sender" on the mail, or "No longer at this address." Also, mark out any bar codes. Then pop back into a mailbox. The piece will come up as undeliverable ...