Second screen apps identify who paid for that political TV ad

The campaign season has officially kicked into high gear, and viewers in many states are beginning to see a barrage of political advertising. Most of those spots are financed by PACs of all shapes, sizes and political persuasions to the tune of hundreds of millions of dollars. Two new apps, Super PAC App and Ad Hawk, listen to TV ads Shazam-style, then let you know who's footing the bill.

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