Categories CSPS-Korea: Student Fellows 2023 Homeland Security Chief Won’t Rule Out Carry-On Luggage Ban Post author By Post date December 4, 2014 Recent Posts Perilous to Ignore: The Impacts of Climate Change on Australia’s Security CSPS Fellow Steven Wachter calls attention to the dramatic—and rising—impacts of climate change on Australia's national security. Realist Economic Nationalism versus Multilateralism: Which is Best for Power and Plenty? CSPS Fellow Alexandra Gerbracht argues that economic multilateralism outperforms nationalist economic policies in terms of both "power" and "plenty." 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 → Senate Passes Bill to Limit Airline Security Fees