Why this Ebola outbreak could be "catastrophic"

The World Health Organization's director-general, Tedros Adhanom Ghebreyesus, warned the Ebola outbreak in the Democratic Republic of Congo and Uganda is outpacing response efforts to contain the virus. We speak with Dr. Craig Spencer, an emergency physician and public health professor at Brown University, who contracted Ebola while treating patients in west Africa in 2014. He says the dismantling of US aid and CDC response teams have hampered efforts to detect and contain this latest outbreak.