An Associated Press story reports that rangers are still searching for a grizzly bear that killed 59-year-old hiker John Wallace, of Chassell, Mich., last week along a trail about five miles from the nearest trailhead. Story here. A colleague recently returned from the Lake Louise area, where hikers are required to travel in groups of four in areas with high grizzly concentrations. Rangers do spot checks at the trailheads. Hikers who don't comply are subject to fines of $2,000. On certain trails in Jasper National Park, backcountry hikers are required to carry bear spray.

Question: Should hikers in this country be required to travel in groups of four and/or to carry bear spray when recreating in bear country?