I was inclined to think the same but then after giving it more thought I became open to a different conclusion than my initial inclination. Amongst the reasons for second-guessing: the TSA requires longer, more up-close contact than is minimally necessary to be as (in)effective for security purposes as is currently the situation at airports, thus increasing the risk for disease communication via the TSA; and the DHS/TSA keeps people in lines at airports longer than is minimally necessary for the same, thus increasing the risk for disease communication, via airborne transmission or otherwise.