Chicago braces for potential repeat of teen-led chaos in downtown.

Chicago aldermen are warning that social media is already promising a "part two" of last weekend's downtown chaos, which threatens to do enormous damage to the city's tourism and hospitality industry. Officials are hoping that police will be better prepared this weekend if there is another round of chaos. Aldermen are urging police and State's Attorney Kim Foxx to use every tool they have, including arresting and prosecuting dangerous violent offenders who engage in mob activity that causes harm to other people.