Senate Minority Leader Bruce Tarr will be an in-studio guest on the Emily Rooney radio show, which airs from noon-1 p.m. on Wednesday afternoon. Rooney and Tarr will be discussing the habitual traffic offender bill that Tarr has filed with the backing of the House and Senate Republican Caucuses. Be sure to tune in by radio at 89.7 FM or on your computer by visiting the WGBH website.