The District of Columbia "makes it illegal for anyone to 'guide or escort' anyone else for hire without first passing a test and obtaining a special license. The prohibition on unauthorized talking covers all of the public spaces in D.C.--including roads and sidewalks." The Institute for Justice, through attorney Bob McNamara, is suing over the restriction on speech and economic liberty. [IJ, IJ video, WSJ, MSNBC, Legal Times, AP]