FEMA chief: Puerto Rico relief is an unprecedented challenge

Amid criticism of the Trump administration's response to the devastation in Puerto Rico resulting from Hurricane Maria, FEMA administrator Brock Long said the priorities were to "take care of people and stabilize the situation and do everything we can to sustain life."

"This is a logistically challenging and very unique event that the United States hasn't seen for a very long time, if ever," Long said. He cited the strength of the storm, Puerto Rico's weak infrastructure and the fact that as an island, and with airports heavily damaged, Puerto Rico is harder to reach with resources. Airlifts are supplying some areas that remain cut off after the storm.