This report quotes Reason Foundation's Bob Poole on what policies TSA ought to adopt:
among large and midsize airports, only Omaha and Colorado Springs, Colo., still use swabbing machines as the only means of screening checked baggage for explosives.
“I didn’t realize that any of the airports in that size category were still doing trace detection,” said Robert Poole, a transportation expert with the Reason Foundation, a nonprofit free-market policy group based in Los Angeles. “It’s long overdue for an airport the size of Omaha” to have scanning machines.
... Poole said Omaha should temporarily place the luggage scanning equipment in the lobby, sacrificing customer space in order to use superior security technology sooner.Scanning equipment, he said, can reveal timing devices or other suspicious details, while swabbing is meant only to detect explosive materials.
We're from the government, and we're here to help!