Concerns mount over multiple drone sightings across parts of US

US officials are seeking to reassure the public after an increase in drone sightings near the country's east coast. The White House said the FBI has received 5,000 reported drone sightings, but only 100 had merited further investigation. Many of the reported sightings were said to be legal and lawful drones. President-elect Donald Trump, though, is seeking more answers. Sally Patterson reports from New York.