BOSTON (AP) — With their festive, party-like ambiance and ability to travel on land and in water, duck boats have long been tourist attractions for sightseers around the U.S. But a string of deadly accidents has left the industry reeling, forced safety improvements and led some advocates to call for a total ban on the vehicles. In Seattle, after five college students were killed in a 2015 duck boat collision with a bus, the company pulled half its fleet out of service.Read more on NewsOK.com