Just ten days after the emergency at Washington's Hanford nuclear facility in early May, when a tunnel collapse prompted concerns about radioactive waste fallout as we described then in "'Serious Situation' After Tunnel Collapse At WA Nuclear Facility; Evacuation Ordered, No-Fly Zone In Place", we reported that the U.S. Department of Energy was scrambling to deal with a second emergency, when signs emerged that a massive underground double shell nuclear waste holding tank may also be leaking. As reported then, the tank in question - AZ 101 - was put into service in 1976, with a life expectancy of 20 years. Through 2017, it has been holding hot, boiling radioactive and chemically contaminated waste for 41 years.