Yellow Cab Chicago requested Tuesday that a fleet of taxis remove controversial anti-Islam ads. The ads, sponsored by the group Stop Islamization of America, appeared on 25 Chicago cabs this summer. Michael Levine, CEO of Yellow Cab Chicago, said the signs were offensive to the city’s taxi drivers, an estimated half of whom are Muslim.

Yellow Cab Chicago requested Tuesday that a fleet of taxis remove controversial anti-Islam ads. The ads, sponsored by the group Stop Islamization of America, appeared on 25 Chicago cabs this summer. Michael Levine, CEO of Yellow Cab Chicago, said the signs were offensive to the city's taxi drivers, an estimated half of whom are Muslim.

A controversy erupted last week in Chicago after it was publicly revealed that a noted anti-Islam blogger, Robert Spencer, had been invited to an American Library Association panel advertised as "dispelling stereotypes about Islam.