Kara McCullough, Miss USA 2017, speaks to students at STARBASE Louisiana on Barksdale Air Force Base, Louisiana, May 15, 2018. McCullough visited ahead of the 2018 Miss USA and Miss Teen USA pageant in Shreveport, Louisiana. The STARBASE program is a U.S. Department of Defense initiative that helps students learn practical applications in Science, Technology, Engineering and Math. McCullough, a nuclear scientist with the U.S. Nuclear Regulatory Commission, spent almost two hours engaging with the students about the importance of STEM. (U.S. Air Force photo by Airman Maxwell Daigle/Released)

STARBASE Louisiana students demonstrate the robot they programmed as Kara McCullough, Miss USA 2017, looks on during her visit to Barksdale Air Force Base, Louisiana, May 15, 2018. STARBASE is a Department of Defense program for 5th grade students designed to broaden their skills in Science, Technology, Engineering and Math. (U.S. Air Force photo by Airman Maxwell Daigle/Released)

Kara McCullough, Miss USA 2017, shakes a student's hand during her visit to STARBASE Louisiana on Barksdale Air Force Base, Louisiana, May 15, 2018. McCullough, a physical scientist for the Nuclear Regulatory Commission, spoke to the students about the importance of jobs in Science, Technology, Engineering and Math and working to accomplish their goals. (U.S. Air Force photo by Airman Maxwell Daigle/Released)

Kara McCullough, Miss USA 2017, helps students with their project during her visit to STARBASE Louisiana on Barksdale Air Force Base, Louisiana, May 15, 2018. McCullough spent nearly two hours encouraging the students to pursue their academic dreams in Science, Technology, Engineering and Math and gave them practical tips and ideas on furthering their education. (U.S. Air Force photo by Airman Maxwell Daigle/Released)

U.S. Air Force Capt. Bryan Freeman, 11th Bomb Squadron pilot, tells contestants in the 2018 Miss USA pageant about the B-52 Stratofortress during their visit to Barksdale Air Force Base, Louisiana, May 15, 2018. Freeman and other Airmen from Barksdale led the contestants on a tour of a B-52 display during their outing. (U.S. Air Force photo by Airman Maxwell Daigle/Released)

Contestants in the 2018 Miss USA pageant look inside the bomb bay of a B-52 Stratofortress during their visit to Barksdale Air Force Base, Louisiana, May 15, 2018. The contestants toured Barksdale AFB ahead of the pageant, which will take place in nearby Shreveport, Louisiana. (U.S. Air Force photo by Airman Maxwell Daigle/Released)

Marina Gray, Miss Maine USA 2018, talks to U.S. Air Force Airman Madison Sadowski, an aircraft maintenance specialist assigned to the 2nd Aircraft Maintenance Squadron, at Barksdale Air Force Base, Louisiana, May 15, 2018. Gray, a soldier in the Maine National Guard, talked with Sadowski and other Airmen about service and life in the military during her visit to Barksdale with other contestants in the Miss USA 2018 pageant. (U.S. Air Force photo by Airman Maxwell Daigle/Released)

U.S. Air Force Capt. Kyle Allen, 11th Bomb Squadron pilot, shows Nicole Smith, Miss Arizona USA 2018, the flight deck of a B-52 Stratofortress at Barksdale Air Force Base, Louisiana, May 15, 2018. Smith visited Barksdale with other contestants in the 2018 Miss USA pageant, which will be held in nearby Shreveport, Louisiana. (U.S. Air Force photo by Airman Maxwell Daigle/Released)

Laine Mansour, Miss Mississippi USA 2018, talks with firefighters at Barksdale Air Force Base, Louisiana, during her visit to Barksdale with other contestants in the 2018 Miss USA pageant May 15, 2018. The contestants met with firefighters, aircrew and maintenance Airmen as part of the tour. (U.S. Air Force photo by Airman Maxwell Daigle/Released)

U.S. Air Force Airman 1st Class Austin Nash, a 2nd Civil Engineer Squadron firefighter, shows Logan Lester, Miss Texas USA 2018, fire-fighting gear at Barksdale Air Force Base, Louisiana, May 15, 2018. Lester toured Barksdale AFB with other contestants in the 2018 Miss USA pageant. (U.S. Air Force photo by Airman Maxwell Daigle/Released)

Kalie Wright, Miss Minnesota USA 2018, and Laine Mansour, Miss Mississippi USA 2018, stand in front of water spray from a fire truck during their tour of Barksdale Air Force Base, Louisiana, May 15, 2018. Mansour and Wright toured the base with other contestants in the 2018 Miss USA pageant. The fire trucks are operated by firefighters assigned to the 2nd Civil Engineer Squadron and the 307th CES. (U.S. Air Force photo by Airman Maxwell Daigle/Released)