SAN SEBASTIAN -- While walking around some yellow and red paint spatters in San Sebastian, I heard that Spanish police blew up a bomb left by ETA on an electricity pylon. Basque guerillas have adopted a new tactic of targeting the country's power infrastructure. The armed separatist group placed bombs on two high-tension electricity towers run by grid operator Red Electrica. Police found one bomb on a pylon near the French border in the Basque province of Guipuzcoa, the host of the Manifesta exhibit.