They arrived at the Los Alamos site and followed the plan with Chuck changing into the uniform and then using the access pass to gain entry to the building. It worked well, and it surprised both Bigsy and Clare that there had been so little effort required to gain access.
Chuck looked the part wearing the uniform and knew the best things to say at the entrance. He'd arrived by taxi and used the pretence of meeting a particular person to get through to the cafe area within the building. Because he had an access pass, there was no problem for him to do this and he was not treated as someone that needed to be escorted around the site.