Experts have said the migrants are being used as a weapon, just as deadly as a missile aimed straight at the United States. Mass migration is being "weaponized" to overwhelm and destabilize the United States and ultimately break it apart, according to Joseph Humire, who studies unconventional warfare and is the executive director of the Center for a Secure Free Society. "That's why I think the term 'invasion' is appropriate," Mr. Humire told The Epoch Times. Migrant PawnsLast year, a record 500,000 migrants traveled through the Darién Gap, documents show.