TSA has some additional, visible safety measures in place, and some behind the scenes, at the Gulfport-Biloxi International Airport following the terror attacks in Brussels, Belgium, Tuesday morning. (Photo source: WLOX) TSA has some additional, visible safety measures in place, and some behind the scenes, at the Gulfport-Biloxi International Airport following the terror attacks in Brussels, Belgium, Tuesday morning. That's according to airport executive director Clay Williams.