ATLAS is one of four new experiments that will begin taking data this fall when the LHC begins colliding beams. The scientific community has been anticipating these new generation of experiments because we believe new discoveries into the fundamental nature of matter will occur. Our group has had a leading role in the construction, commissioning and calibration of the Transition Radiation Tracker (TRT). Harold Ogren led the Barrel TRT design and construction phases, and several modules were assembled in Bloomington. Because we don't know exactly what will be discovered at the LHC, our analysis interests cross a broad range of topics. The LHC was built to investigate the nature of electroweak symmetry breaking, and we have interests in both Standard Model and Beyond the Standard Model (BSM) searches for the Higgs Boson. Supersymmetry has been touted as the likely explanation for TeV-scale new physics, and we are developing analysis techniques for observing heavily ionizing massive particles and heavy resonances.