Today's letters: Just how realistic are promises to cut taxes?

Armoured dinosaurs with clubbed tails once roamed in what is now northeastern British Columbia, a new study suggests, leaving three-toed footprints across the landscape when the Rocky Mountains were still in their infancy.The study published this month in the peer-reviewed Journal of Vertebrate Paleontology analyzed fossilized footprints dating back about 100 million years in the Tumbler Ridge area, northeast of Prince George, as well as northwestern Alberta.It concluded the tracks belonged to a species of ankylosaurid ankylosaurs, which had a clubbed tail and three toes on its hind feet...