With Tepco due to begin removing more than 1,300 spent-fuel rod assemblies and nearly 200 fresh ones from the reactor 4 pool at the Fukushima No. 1 plant this month, global pressure is mounting to allow an international task force to monitor and assist the highly hazardous operation.

A former Japanese ambassador to Switzerland, anti-nuclear groups in Japan and abroad, nuclear engineers, doctors and radiologists are warning of the dangers of the operation Tokyo Electric Power Co. plans to carry out and are calling for pressure on Prime Minister Shinzo Abe's administration to be more globally transparent.

"It is urgently needed to set up an international task force to assist Japan by deploying all possible means to reduce the risks of the imminent first unloading of spent fuel from unit 4," ex-Ambassador to Switzerland Mitsuhei Murata said in a recent letter to U.S. President Barack Obama.