Three years after the tsunami-induced meltdown at Japan’s Fukushima Daiichi nuclear power plant, PBS NewsHour correspondent Miles O’Brien talks about the continuing contamination crisis, and the accident that caused him to lose his arm.Three years after the tsunami-induced meltdown at Japan’s Fukushima Daiichi nuclear power plant, PBS NewsHour correspondent Miles O’Brien talks about the continuing contamination crisis, and the accident that caused him to lose his arm.