Whatever your final destination, your next airplane trip will begin in your bedroom. Last week's federal takeover of baggage screening means travelers need to relearn how to pack their bags--and plan everything from the layout of their suitcases to the sizes of the books they take.
The new procedures, carried out by the Transportation Security Administration (TSA), require that all checked bags be screened for explosives. (Before Sept. 11, fewer than 5% of bags were searched for bombs.) On the surface, most of the nation's 442 airports look largely the same as they did before the Dec. 31 deadline, and much...