There is a Southern Poverty Law Center (SPLC) report that is critical of a Minutemen group that did a gathering on April 1, 2005 in Cochise County, AZ:
SPLCenter.org: Arizona Showdown
The most interesting statement was: "But no matter how desperate, it was hard to imagine any but the most foolhardy of undocumented immigrants would dare attempting to cross into the U.S. along the mile of Border Road staked out by the Minuteman Project, not when it was so easy for them to just hike an extra mile in either direction and circumvent the vigilante enforcement zone, which was a hive of activity easily spotted a distance."