WASHINGTON -- U.S. officials dramatically increased the screening of incoming air cargo following the interception on Friday of two explosive devices believed to have originated in Yemen, as a renewed debate emerged over how much resources federal officials and private companies should devote to such screening.
The packages from Yemen contained chemical explosives camouflaged as printer cartridges and wired to be detonated by a cell phone, and were found in Dubai and England on Friday only after the U.S. received a tip from Saudi Arabia.
"Without this intelligence, it is likely they would have slipped through the security measures we have in place," said U.S. Rep. Michael McCaul, R-Texas, a Homeland Security committee member who was briefed on the plot.
The bombs, he said, "have exposed a weakness in the way that cargo is screened on its way to the U.S." and that terrorists have identified that vulnerability. "This opens everybody's eyes up," McCaul said.
The U.S. currently checks incoming foreign parcels using a network of government-certified private screeners and companies as well as its own inspectors at about 18 gateway airports around the country, according to the Transportation Security Administration.
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As of August, about 38 percent of cargo coming into the U.S. was not being screened, according to the TSA.
The bomb plot is likely to spark a call in Congress to push for 100 percent screening, McCaul predicted Saturday. One challenge, he added, will be how "to balance security and commerce on this matter."
The sheer numbers of packages flowing through the $100 billion global air freight industry is daunting. UPS, which had three planes inspected at airports in the U.S. on Friday, currently ships 15 million packages a day worldwide. FedEx ships about 8 million.
"We have to find that balance" between security and a timely operation, said UPS spokeswoman Karen Cole. "We have a lot of security checkpoints and systems to make sure that network is secure."
Shipment data are transmitted to the Department of Homeland Security at least four hours before any cargo plane lands on U.S. soil. DHS officials then analyze the data about the packages' origin and destination to identify "high risk" cargo to be inspected.
In addition, all inbound packages weighing more than 150 pounds are searched and smaller packages could be inspected by bomb-sniffing dogs while in transit, according to U.S. Rep. Jane Harman , D-Calif., chairwoman of the Homeland Security Intelligence Subcommittee.
Citing security concerns, TSA officials declined to describe the inspection methods. The minimum inspection criteria, said officials, has been temporarily elevated.
In June, TSA assistant administrator John Sammon told Congress that the agency has a goal of screening 100 percent of incoming international cargo by 2013.
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TSA has said that effort will be limited by existing technology's inability to quickly and accurately screen packages as well as the difficulty of relying on screening programs run by foreign governments.
In recent years, TSA has increased domestic screening programs.
As of August, TSA or certified screeners check all cargo on domestic passenger planes, and all cargo on board international passenger flights to the U.S. that are tagged "high-risk." TSA has certified more than 1,200 cargo screening facilities in the U.S.
The mail bomb threat prompted DHS to roll out additional security measures at passenger airports. An "unpredictable mix" of security layers for passengers were implemented, TSA announced, including explosives detectors, bomb sniffing dogs and additional pat downs.
Distributed by McClatchy-Tribune Information Services
