Armed Guards Planned for Schools in Los Angeles, Phoenix

Fallout from Newtown and a fearful population

Two of the country's largest counties will be sending armed guards to their schools beginning today as students head back to class after the holiday break.

Sheriff Joe Arpaio of Arizona's Maricopa County, which includes Phoenix and Tempe, sent a group of armed volunteers, known as his "volunteer posse," to patrol area schools today.

He had previously used the group to help bolster security at area malls during the heavy holiday shopping season, and to scope out undocumented immigrants living in the county.