Germany’s first shipment of nuclear waste in three years to a British reprocessing plant arrived quietly in the U.K. yesterday, a sharp contrast to the protests that marked the beginning of its five-day journey. Protesters in Germany succeeded briefly in delaying the shipment, and demonstrators in northern France threw smoke bombs on the rail line to slow down the train, which was carrying five containers of spent fuel rods from two German nuclear plants. Meanwhile, anti-nuke activists in Poland yesterday blocked train tracks to the Baltic seaport of Szczecin to protest planned shipments of nuclear fuel to a controversial Czech power plant just over the border from Austria.