Article Photos: Winter blast causes icy roads, delays in Pa. 1/2

Sarah Klinetob, a Penn State University research assistant, walks through the bitter cold Tuesday, Jan. 22, 2013 on her way to campus along Allen Street, in downtown State College, Pa. Temperatures in State College were in the single digits with wind chills in the negative numbers Tuesday.  (AP Photo/Centre Daily Times,Nabil K. Mark) MANDATORY CREDIT; MAGS OUT