The 2 Investigators and Power Survey Company took a look at stray voltage around the Chicago area. (Credit: CBS)

Stray Electricity Poses Hidden Danger

2 Investigator Dave Savini explains the danger you will not know about, until it is too late.

A protestor holds up a banner as a guest beside her reaches to pull it away as US President Barack Obama speaks on immigration reform at the Copernicus Community Center on November 25, 2014 in Chicago. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)

Hecklers Interrupt Obama Immigration Speech

Obama was giving a speech on immigration at the Copernicus Center on the NW Side.

A police officer runs from a burning squad car after it was set on fire by demonstrators during a protest following the grand jury announcement on November 24, 2014 in Ferguson, Missouri. Ferguson has been struggling to return to normal after Brown, an 18-year-old black man, was killed by Darren Wilson, a white Ferguson police officer, on August 9. His death has sparked months of sometimes violent protests in Ferguson. A grand jury today declined to indict officer Wilson.  (Photo by Scott Olson/Getty Images)

National Guard Units Ordered To Ferguson

Missouri Governor Jay Nixon ordered 2,200 National Guard units to Ferguson.