Airports Become Unsettling New Frontline for Immigration Arrests

In an effort to ramp up deportations, federal immigration authorities have a new tactic: arresting people who overstay their visas in airports, according to an immigration memo obtained by ABC News.

The arrests have occurred across the country in at least nine states from California to Virginia, and immigration lawyers are warning their clients about the risk to domestic travel, according to a source. 

There have been at least 27 arrests in airports using this tactic, according to a document obtained by ABC News. The document doesn't state over what period of time the arrests took place.