Nebraska researchers are launching a two-year study of Congress’s involvement in nuclear weapons policy. The study is believed to be the first comprehensive look at the topic in more than 30 years.

Carnegie Corporation of New York recently awarded a $428,000 grant to University of Nebraska–Lincoln political scientists Rupal Mehta, Geoff Lorenz and Ingrid Haas for a multi-method study of Congress and nuclear weapons policy dating back to 1973.

“We believe that this is an important, but missing, piece of the puzzle when it comes to better understanding global nuclear and international security,’” the researchers wrote in their study proposal.