Sheriff Tom Dart talks about why calling in the National Guard to counter Chicago’s violence isn’t as easy as it seems

ALSIP, IL - JULY 8:  Cook County Sheriff Tom Dart (R) speaks with investigators at Burr Oak Cemetery July 8, 2009 in Alsip, Illinois.  Police suspect more than 100 graves could have been dug up in the historic cemetery over the last several years and the bodies dumped in the rear of the burial ground so the graves could be resold by the cemetery management. Blues music legend Willie Dixon and civil rights figure Emmett Till are among those buried in the suburban Chicago cemetery.  (Photo by Scott Olson/Getty Images)

ALSIP, IL - JULY 8: Cook County Sheriff Tom Dart (R) speaks with investigators at Burr Oak Cemetery July 8, 2009 in Alsip, Illinois. Police suspect more than 100 graves could have been dug up in the historic cemetery over the last several years and the bodies dumped in the rear of the burial ground so the graves could be resold by the cemetery management. Blues music legend Willie Dixon and civil rights figure Emmett Till are among those buried in the suburban Chicago cemetery. (Photo by Scott Olson/Getty Images)

Cook County Sheriff, Tom Dart joins Roe Conn and Anna Davlantes to talk about legislature supported by Chicago Police Supt. Eddie Johnson that would require judges to sentence gun crime offenders to longer terms.