** TO GO WITH STORY SLUGGED MEXICO REMESAS ** A man peeks through the border fence with the U.S. from Tijuana, Mexico, Tuesday, Feb. 19, 2008. Remittances sent home by Mexicans working abroad have fallen for the first time for six straight months, threatening local businesses, stalling construction and choking cash flow to tiny farming hamlets where as much as half the population works in the United States. (AP Photo/Dario Lopez-Mills) Mexico Migrant Money Declines