Sun letters to the editor for Tuesday, Sept. 11, 2018

Re: “Buckle up for the Broncos, mother urges”, Opinion, Sep. 10.
This appeal to make seatbelt use mandatory in highway buses will save some lives, but does nothing to prevent such tragedies.
Aerial photos show that the Broncos’ bus crashed into the side of the double-trailer freight truck.
How many hours-in-service had been logged by the bus driver prior to the collision? Was the coach driver fatigued? Was the bus driver on his smart phone or fiddling with the entertainment sys