Well, you’ve got to give Hidehiko Nishiyama, a deputy director at Japan’s environment ministry, credit for being blunt:

Opinions on the trip’s effectiveness vary among participants, but in the six months since, not a single foreign company has been employed in Japan’s cleanup, according to the trip’s participants and Japan’s Environment Ministry.
[...]
“Even if a method works overseas, the soil in Japan is different, for example,” said Hidehiko Nishiyama, deputy director at the environment ministry, who is in charge of the Fukushima cleanup. “And if we have foreigners roaming around Fukushima, they might scare the old grandmas and granddads there.”

Needless to say, Debito is not amused.