Rescuers help abandoned chimps used in medical experiments04:37
In order to make medical advances, scientists often use animals as their first line of testing, but what's the responsibility to these animals once testing is complete? That question is being asked about a group of chimpanzees on offshore islands along the Liberian coast. NBC's Keir Simmons reports.
Life at the border: How a wall could impact this Arizona town04:50
Inmates rescue baby trapped inside a car00:20
Heather Nauert withdrawals bid for UN ambassador consideration00:17
Chuck Todd: National emergency declaration will be an ’uphill battle’ for Trump04:01
Grief-stricken Aurora draws community together after shooting02:19
Police investigating if Jussie Smollett staged attack against him02:31