Why is Trump talking about nuclear testing? | By the Numbers

The world banned nuclear testing in 1996. The US says it might be time to start again. Subscribe to our channel http://bit.ly/AJSubscribe Follow us on Twitter https://twitter.com/AJEnglish Find us on Facebook https://www.facebook.com/aljazeera Check our website: http://www.aljazeera.com/ Download AJE Mobile App : https://aje.io/AJEMobile @AljazeeraEnglish #Aljazeeraenglish #News