Travel ban throws research, academic exchange into turmoil

Universities across the U.S. say President Donald Trump's ban on travelers from seven Muslim countries is disrupting research projects and academic exchanges in such fields as medicine and engineering.

For example, collaboration between HIV researchers at Harvard and in Iran is now in question. And a new engineering program for Iranian students is on hold in Indiana.

Meanwhile, thousands of academics abroad have called for a boycott of conferences in America.

Some fear the travel ban could undermine vital research and cost the U.S. its role as the world leader in innovation.