Three groups filed a class action lawsuit Wednesday against the Texas Department of Criminal Justice and its executive director, Brad Livingston, alleging Texas prisons' lack of air conditioning is dangerous. The lawsuit, filed in Houston federal court, alleges TDCJ is housing inmates in inhumane conditions that violate constitutional rights. Wallace Pack Unit in Navasota, Texas, lacks air-conditioning, and summer temperatures can send living conditions sweltering into the triple digits. The groups bringing the suit include the Texas Civil Rights Project, and the University of Texas School of Law’s Civil Rights Clinic. The suit was filed on behalf of four prisoners at Wallace Pack Unit in Navasota. It also names Wallace Pack Unit senior warden Roberto Herrera as a defendant.