Regulators, scientists insist leak of radioactive water at Xcel nuclear power plant posed no danger

Minnesota regulators knew four months ago that radioactive water had leaked from a nuclear power plant in Monticello — but they didn’t announce anything about the leak until this week. The delay in notifying the public about the November leak raised questions about public safety and transparency, but industry experts said Friday there was never a public health threat. They said Xcel Energy voluntarily notified state agencies and reported the leak of tritium to the Nuclear Regulatory Commission soon after it was confirmed and that the leak of 400,000 gallons...