U.S. Navy Secretary Ray Mabus visited Mississippi State Thursday and spoke to attendees at the 2011 MSU Biofuels Conference. As a leader in biofuels research, MSU may be poised to aid the Navy, which is too reliant on fossil fuels, according to Mabus. One of the Secretary's goals is to secure half of all energy used by the Navy from non-fossil fuel sources by 2020.