...I was caught in my own net the other day, asked to name my greatest living Canadian hero. Fortunately I was prepared for the question, and could answer immediately: Linda Gibbons. For those who have never heard of her -- her story is seldom mentioned in our media -- Linda is Canada's longest serving political prisoner. [....] Linda Gibbons, by contrast, has no prospect of release. She is a grandmother, age 62. Her crime was praying, publicly, inside the 60-foot "bubble" around a Morgentaler abortion clinic in Toronto. She also, on occasion, held up a placard reading, "Why, Mom, when...