While Human Rights Watch is one of the best-known and most effective organizations dedicated to investigating and defending human rights around the world, its emergencies team is less familiar to the general public. “E-Team,” a new documentary by Ross Kauffman and Katy Chevigny, sheds light on the work of four members of the division that, in the words of the organization’s website, “deploys as crises and conflicts are underway to impact the situation in real time.”