Congressman Thompson cites 'loose lips sink ships' in call for investigating leaked Signal thread

California Congressman Mike Thompson says at a news conference with fellow veterans to discuss the alleged leak of war plans into a Signal app group chat among national security leadership leaked to a journalist at The Atlantic magazine that loose lips sink ships, and that discussing a military invasion on an unsecured platform was recklessly dangerous, especially with sensitive information shared while someone sat in Moscow, and demanded a collaborative effort to understand what occurred and prevent such security breaches.