Active-shooter simulations are 'damaging and harmful' – psychologist

Two of the country's biggest teachers unions are calling on schools across the country to end active-shooter simulations saying they cause more harm than good. The unions say students are left traumatized by the drills. Clinical psychologist and adjunct professor at Columbia University Dr. Norman Fried provides perspective. After his international trip to garner the support of world leaders, Venezuelan opposition leader Juan Guaido has returned home to chaotic scenes of protest as the US tightens sanctions on the country. RT America’s Rachel Blevins has the latest. After Tuesday's problem-free primary in New Hampshire there are growing concerns for the upcoming Nevada caucus, as Democrats will be using the same app that caused the Iowa chaos. RT America's Faran Fronczak has the latest.