The last sentence sums it up darn well. Walter CMH The Business Travel Coalition, an advocacy organization for major corporations, last week urged the U.S. Senate and House of Representatives to hold hearings this summer on checked baggage security. BTC is concerned that strict adherence to the current December 31 deadline for airports to scan or swab every checked bag for explosive materials is not a good idea. "Committing billions of dollars and other scarce resources to just one aspect (of security)--i.e., screening passengers and baggage--inevitably means that we can pay less attention to other risks," BTC said. The group claimed that because of limited research and development, existing explosive detection systems "represent an inferior solution and will likely be obsolete in the short term." What's more, BTC said, installing the bulky, expensive devices in 429 airports nationwide will cost billions and might be impossible to complete on time. BTC said the federal security policy of "focusing on things vs. people" is "misguided," and that "just as all passengers do not represent an equal security threat to the system, neither do all checked bags."