Following September 11, 2001 commercial airlines’ vulnerability and appeal to terrorists became apparent. In 2002 the Department of Homeland Security was established solely to protect Americans from threats like these.

United States Customs and Border Protection (CBP) and the Transportation Security Administration (TSA) cooperate to facilitate safe travel and transportation into the United States. Under the current regulatory framework, TSA has responsibility for ensuring the security of the nation’s transportation of cargo by air into the United States while CBP has responsibility for securing the nation’s borders by preventing high-risk cargo from entering the US. […]