In West Virginia, a public hearing is underway into the Sago mine tragedy that killed 12 miners in January. On Wednesday, a state mining inspector testified he may inadvertently set off the false initial rumor the miners had been found alive. On the hearings opening day Tuesday, several of the miners’ relatives urged the government to impose tougher safety laws. John Groves, whose brother Jerry died in the blast, told mine safety officials: “We’re not going to let this rest. If another accident happens without safety changes, you are responsible.”