Looks to me like the fly-by-night trucking schools might be a problem, too.
Are there good stats that show that a language issue is associated with higher accident rates? If so, then this makes sense. If not, then it's just another way to vilify immigrants.
And, if it's sauce for the goose, how about the gander? Shouldn't EVERY driver on the road have the same language proficiency? I'd really hate to get hit by a semi; but I don't love the idea of being hit by a large SUV either.
Truck accidents make for good news; but this is like those "have you seen this child" milk carton ads. Thousands more people are killed/injured by car wrecks, often related to alcohol consumption. But those accidents/deaths haven't declined much. Maybe we should mandate that cars have breathalyzer locks on them.