THE PAT WHITE SHOW discusses removing CDL licenses from non-English speakers

Recently the Department of Transportation has revoked the CDL licenses from thousands of foreign trucker drivers who can read or write in the English language. How did they secure a commercial license without the ability to speak and read in English? What state is issuing these licenses and what are their reasons for doing it. Should all drivers be required to read and understand the English language if they want to drive on American roads?