The howl of Robert Plant’s voice on Led Zeppelin’s “When the Levee Breaks” is apt to describe the current situation for employers as the workers’ compensation system in Illinois is threatened.The balance of the workers’ compensation system was upset with Public Act 101-0006 that amended the Illinois Workers’ Compensation Act and the Illinois Workers’ Occupational Disease Act to allow workers to bring civil actions against their employers in latent injury and disease cases that developed from exposure more than 25 years …