News-Gazette (Sept. 11) -- Sheldon Jacobson thinks most air travelers should not have to wait in long security lines. Screening all passengers, their carry-ons, shoes and coats is time-consuming and expensive. And it isn't making flying safer. "The vision that we had — this is talking weeks after Sept. 11, just to give you the perspective — is that we can't do 'one size fits all,'" said Jacobson, a computer science professor and the director of the Simulation and Optimization Laboratory. "We started to do the research to create what we now know as (TSA's) PreCheck."