New research from York University shows wearing a mask can impact the ability to recognize other people, even if those being viewed have nothing covering their face. Top News .

TULSA, Okla. - Oklahoma authorities said they caught a suspected porch pirate that donned "an unusual and questionably effective mask." He was seen wearing women's underwear over his face. Tulsa ...

That's especially true when there are many people wearing the same masks, and a masked rock-thrower (for instance) can feel safe that it will be hard to identify him among the other mask-wearers.