The difference between quakes, aftershocks?
05:04Another powerful earthquake dealt another devastating blow to Nepal just as the country is still reeling from the last quake just over 2 weeks ago. Alex Wagner talks with physicist Dr. Michio Kaku.
Another powerful earthquake dealt another devastating blow to Nepal just as the country is still reeling from the last quake just over 2 weeks ago. Alex Wagner talks with physicist Dr. Michio Kaku.
