The violent struggle between rival Mexican drug cartels and other criminal groups has left tens of thousands dead and towns across Mexico paralyzed with fear. With overwhelmed police forces relatively powerless to control drug-related murders and kidnappings, a growing number of vigilante organizations, or self-defense
groups, aim to restore order — but now even they are fighting, and killing, among themselves.
Leading U.S. immigration experts, public policy scholars and political figures debate issues and solutions to crucial questions surrounding comprehensive immigration reform.