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• A new federal law is making it impossible for truck drivers to responsibly enjoy marijuana.

• It's a misguided attempt on the industry's part to promote safety.

• Promoting better training would be wiser.

The trucking industry has been yelling about a driver shortage for decades. Since 2011, executives have listed the supposed shortage of truck drivers as a top 10 concern in an annual industry survey.

When it comes to recruiting, kids these days are perhaps the most vexing for trucking big wigs. Millennials and Gen Z just don't seem to want to become truck drivers. The most recent report from the American Trucking Associations on the driver shortage pointed to the "relatively high average age" of a truck driver (a whopping 46 years old) as one of the foremost reasons for the industry's labor woes. (The ATA is the industry group that represents America's larger trucking companies.)