A breach in air security and the smuggling of explosives onto two cargo planes bound for the U.S. has raised concerns about the screening process of air-freight cargo. Two packages carrying explosives originating in Yemen made their through four countries on at least four different airplanes before being tracked down in Britain and Dubai. Empty printer cartridges were used to hide the bombs. Officials are now admitting vulnerabilities in the screening of cargo flights that are being exploited by terror organizations like al-Qaida. We discuss protocols in place when screening cargo packages with the director of the Homeland Security Management Institute at Long Island University, Professor Vincent Henry, to find out what needs to be addressed and fixed. Robert Worth, Beirut bureau chief for The New York Times, reports from the region.

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