The Aspen area has seen a growing number of complaints about bears coming into urban areas. Twenty bears were killed by wildlife officials or others in the area last year, including three that were considered attacks against people in Aspen. At least 22 more bears were killed after being hit by cars in the area. Wildlife officials hope by letting hunters kill more bears, fewer of them will be put down or injured. They also hope that by reducing the number overall, they can curtail the number of "problem" bears roaming into towns and homes. Critics charge that the bears hunters will be shooting in the backcountry aren't the same ones rummaging through dumpsters or breaking into houses. The group WildEarth Guardians organized the e-mail campaign against the plan, bolstered by the Sierra Club. "Give Bears a Break, not a Bullet," the group said in e-mails to supporters, arguing that bears were already being killed in record numbers, mostly by hunters. "People in Colorado care about wildlife and care about bears," said Wendy Keefover-Ring, of WildEarth Guardians, who said she worries about the animals' long-term survival as more homes are built in bear habitat. Bears are slow to reproduce, she said, and hunting more of them could harm their survival.