i waited for updates from dispatch. >> detective jerry watka is out of town for memorial day weekend,ut he's on call and gets to the bank as quickly as he can. >> when i got to the scene, the tellers were still at the facility. the officers had set up a perimeter and basically blocked everything off to preserve the crime scene. >> palos heights police call in the illinois state crime scene investigation team to see if any clues had been left at the bank. at first glance, detectives believe the robbers planned the heist perfectly and made it impossible for witnesses to identify them by wearing full body costumes that conceal who they are, with eerie masks straight out of a hollywood movie. >> during the 911 call, one of the tellers described them as costumes from the movie "scream." we later determined after watching the video that it was, in fact, from another movie. >> that movie is from "the town," which had been released the previous year. it's a movie about bank robberies and features a scene where robbers wear the very same masks. >> it's a molded mask that goes over the head and

. >> we are in the gallery of the building at the watka museum. at vanishing ice. 1775 to 2012. the purpose of the exhibition is rich cultural e heritage of the planet's frozen regions, the alpine the arctic and the antarctica. the is a photograph of greenland ice sheet by a german otto becker dating back from 2008 and it's side-by-side with a by camille ceman, also of east greenland. the last iceberg series of 2006. many people understand the importance for ice for the planet, its reflective qualities help regulate the climate. unaware for ple are a collective consciousness in he western culture about these regions. it's important about the context f climate change to let people know that these regions are fundamental to our identity. the museum ore from here this weekend as book tv and merican history tv look at the history and literary life of bellingham, washington saturday c-span 2 and sunday at 5:00 on c-span 3. >> i've been involved in politics in 40 years in one way or another. i worked on reagan's '76 and '80 ampaigns, i worked for the administration for eight years. th