Amy Isackson

An estimated 300,000 kids born in the U.S. are now living in Mexico because their parents were either deported or went south of the border when jobs in the United States dried up. Schools in border areas aren't equipped to educate these children, who may be Mexican but don't feel Mexican.

Americans once waited in line for the chance to be photographed atop the striped donkeys on this famed tourist strip. But 9/11, the recession and the Mexican drug war have stifled tourism and nearly put the "zonkeys" and their owners out of work. A new push is on to save the historic icons.

After living underground in the United States — figuratively speaking — some undocumented immigrants deported to the Mexican border city of Tijuana have been driven — quite literally — underground. They're living in holes along Tijuana's fetid sewage canal for protection against police.