July 29 (UPI) -- Citing "unprecedented technological challenges," Tokyo Electric Power Company announced on Tuesday it has put off the removal of hundreds of tons of radioactive waste from the tsunami-battered Fukushima nuclear power plant until 2037. TEPCO's announcement is the latest setback in cleaning up and decommissioning the nuclear power plant that was catastrophically damaged following an earthquake in 2011. The Fukushima nuclear power plant was flooded by a tsunami during the natural