PRESIDENT FACES RADIOACTIVE CRISIS AND MULLS NEED TO KEEP VEEP ON TICKET; TIM MATHESON GUEST-STARS -- The President's staff reacts to the crash of a heavy rig bearing uranium fuel rods in a remote Idaho tunnel that could pose an environmental -- or terrorist -- crisis, while in another room, electoral strategy is stealthily mapped out that could include jettisoning Vice President Hoynes from the next ticket. Meanwhile, the unwitting Veep ponders how to keep a favorite bill intact that would provide Internet access for the poor; earlier, Hoynes finds himself in the same meeting with Leo for Alcoholics Anonymous. In addition: Charlie regrets getting advice from a meddling Bartlet for filing his tax forms online; Donna's request to Josh for a presidential proclamation honoring the retirement of her favorite teacher might prove more difficult than first imagined.