Shinzo Kimura, a radiation hygiene expert combating the nuclear contamination in Fukushima, is a man of action who stops at nothing to accomplish his mission.

After watching news footage of the nuclear disaster following the Great East Japan Earthquake on March 11, 2011, Kimura, 44, immediately geared up to go to the accident site.

But his boss at the National Institute of Occupational Safety and Health refused to give the green light for his trip to Fukushima, so Kimura quit his job at the government-affiliated institute and scrambled to the disaster area under his own steam.