Gun control remains a major issue in US despite mass shootings

The US has witnessed a series of mass shootings over the last year - including its deadliest in modern history in Las Vegas in October. 

It's one of the few countries on earth where the right to bear arms is constitutionally protected and powerful guns are easy to obtain. 

Debates over gun control have had little effect on policy.

TRT World's Ediz Tiyansan reports.