Homeland Security Chief Won’t Rule Out Carry-On Luggage Ban Recent Posts From Airspace to Arson: Russia’s Expanding Hybrid Warfare Tactics November 24, 2025 Since the early 2010s, and especially following its 2022 invasion of Ukraine, Russia has engaged in hybrid warfare to advance its military […] The Limits of Iranian Influence in Post-ISIS Iraq November 17, 2025 Since the PMF and its allies’ victory over ISIS, the group has transformed into one of Iraq’s most powerful paramilitary and political […] Follow us on Twitter Tweets by @CSPS_GMU Homeland Security chief Jeh Johnson left open the possibility that the Transportation Safety Administration could ban carry-on luggage on airplanes. ]]> ← Standardizing Security Personnel for Better Quality of Care → Justice Department Creates Cybersecurity Prosecutor Unit