TheAtlanta Police Departmenthas launched an internal investigation after a shocking video surfaced showing a cop slugging a woman in the face during a late-night scuffle at anIHOP. In the video, shot at 3 a.m. on Saturday at one of the pancake chain's restaurants in the Buckhead area, two cops confront a young woman in a booth. As one of the officers tries to yank the woman out of her seat, a girlfriend grabs the officer's shoulder, prompting him to swat her away with a smack to the face. The woman then flies into a rage, swinging wildly at the officer's head. The officer ducks and then counters with a hard right punch to the woman's jaw. Amazingly, the petite brunette stays on her feet, and the two officers wrestle her to the ground, before cuffing her and hauling her away in front of dozens of stunned diners. For more on this story clickhere.