According to the Milwaukee Journal, Milwaukee aldermen are considering the imposition of a mandate that would force all drinking establishments in the city, with the exception of restaurants and possibly smaller taverns, to install digital surveillance technology to reduce violence and other disorders both inside and outside.  The measure would require the impacted establishments to install the cameras in such a way as to monitor parking lots and abutting streets and give a "panoramic, full-frame view" of the entire premises inside. The bars and nightclubs would have to keep images for at least a week and provide them to law enforcement upon request. Already, convenience stores in the city are required to have video cameras, as are any retail outlets where police have been called to at least three times in a year.  Bar owners say the measure will cost them at least $10,000 for equipment and installation.