Today will be mostly cloudy with some isolated thunderstorms in the afternoon, with highs in the 70s. A DCist reader uploaded an image of this pig, and even did a little sleuthing to uncover its purpose. Have you seen a pig? Injured Traffic Officer Dies: Popular traffic office Joseph Pozell, who was recognized at a vigil Sunday, has died at George Washington Hospital, the Post reports. D.C. Government Wants to Know: D.C. Mayor Anthony A….