What's the worst that could happen if your tire(s) blow while being towed? A little damage to your trailer, may to your truck also. Maybe a little damage to other vehicles on the roadway. Maybe you lose control of rig and all hell breaks loose.
Guess it depend on how lucky you feel. The price of trailer tires could fall dramatically, right! If you're feeling lucky, you might want to raise the insurance deductibles on your vehicles.
IMHO, a little common sense will remove all this stress from you and/or your family.