Hostage situation unfolding at this hour inside a bank. Several reportedly trapped inside. Good evening. Its great to have you with us on a friday night. We begin with the urgent headline from puerto rico at this hour. A dam at imminent risk of failure, a lifethreatening situation. A Mass Evacuation under way. Some 70,000 people across the island. Catastrophic flooding and mudslides already. The governor saying its time to get people out. We begin with abcs rob marciano on the scene to get Tens Of Thousands to higher ground. Rob. Reporter a disastrous development happening in puerto rico. A large dam is beginning to fail. Two towns and Tens Of Thousands of people in danger downstream. A Flash Flood Emergency in effect right now. Officials urging people to get to high ground. This is a lifethreatening situation happening now. Tonight the new emergency in this unfolding disaster. The battering of Hurricane Maria and her 40 inches of rain causing this major dams failure. Flash flooding fo
bomb but this has to be taken seriously. this would be an extraordinarily alarming and dangerous move and the administration would have to rethink what it is doing. all right. martha raddatz tracking the situation with north korea ever step of the way. thank you martha. president trump responding tonight after facebook revealed thousands of ads were bought by russian agents during the election, ads that praised donald trump or attacked hillary clinton. mark zuckerberg saying he will turn those ads over to congress. today president trump tweeting the russia hoax continues, now its ads on facebook. next to your money. taxpayer money spent on flights on private jets. another cabinet secretary under scrutiny for his travel habits. health and human services chief tom price taking private jets dozens of times from d.c. to philadelphia. cecelia vega with the price tag. how much you have spent already. reporter: tonight health secretary tom price under