‘Playing with Nuclear Fire’ - In March 2011, the Tohoku earthquake in Japan created a tsunami that killed some 16,000 people and caused an estimated $210 billion worth of damage, including crippling the Fukushima Daiichi nuclear power plant resulting in massive emissions of radioactive materials. Vikram Gandhi heads to Japan to investigate what's really going on at ground zero of the Fukushima nuclear disaster. ‘No Man Left Behind’ - For many U.S. veterans returning from Iran and Afghanistan, the transition to civilian life is too often marred by mental illnesses including anxiety, depression, and Post Traumatic Stress Disorder. Ryan Duffy meets with veterans struggling with mental illness and addiction to find out how the men and women who risked their lives on the battlefield are now falling through the cracks back at home.