WBEZ 91.5 Chicago

Invoking the Boston Marathon bombings, a national group has filed a lawsuit aimed at an ordinance that requires jail personnel to disregard federal immigration detainers.

Lawmakers in other parts of the country, most recently the District of Columbia, have approved bills modeled after the policy. Some Republicans want the trend stopped.

Many officials say so, but a WBEZ investigation finds no evidence that inmates freed from jail against the wishes of immigration authorities reoffend or jump bail more than other former inmates do.

Chicago's massive surveillance camera system - already one of the most extensive in the United States - is about to grow.The Chicago Sun-Times reports Mayor Rahm Emanuel at his first meeting of the Public Building Commission agreed with the other commission members that  the network of 10,000 p