More than 1 million travelers are expected to pass through a new configuration of security screening checkpoints at Denver International Airport from Dec. 19 through Jan. 1, Transportation Security Administration officials said Thursday. TSA supervisors also are anticipating a surge of items in baggage that agents will have to confiscate. They displayed a cache of seized items including a cane containing a two-foot sword from last weekend, fireworks, pepper spray, activated stun guns and carefully wrapped holiday gifts, which often contain material requiring secondary inspection.