After a months-long battle led by Chicago Mayor Lori Lightfoot, the City Council last week rejected an alderman’s proposal to give drivers a 10 mph buffer before the city’s prolific speed cameras issue citations. The threshold used to be 10 mph, but at Lightfoot’s request, the council reduced it to 6 mph during the 2021 budget season. She claimed that the change was necessary to make roads safer. Critics argued that she was looking for more money to help balance the city’s budget. But it turns out that two of the police-driven SUVs that currently shuttle Lightfoot around town have...