Russian President Vladimir Putin has issued a decree ordering the FSB secret service to tighten controls over the Crimean bridge that was damaged by a huge blast earlier on Saturday. “The FSB will be given powers to organize and coordinate protective measures for the transport route across the Kerch Strait, for the Russian Federation’s power bridge to the Crimean peninsula and the gas pipeline from the Krasnodar Territory Crimea,” the decree says. It is the Kremlin’s first measure after the blast, which appeared to have been caused in an attack on the structure built by Moscow following its an…