Farm workers Ricardo Visconti (L) and Ruben Perez hold Jersey transgenic cows, four-year-old Pampa Victoria and two-year-old Pampa Argentina respectively, in Buenos Aires in this April 17, 2007 file photo. The Argentine pharmaceutical company that cloned the cows said four other cloned animals had been born and that they would produce human insulin in their milk. The U.S. Food and Drug Administration in 2008 approved the sale of food from clones and their offspring, stating the products are indistinguishable from that of their non-clone counterparts. The moves have stirred controversy about whether tinkering with nature is safe, or even ethical, prompting major food companies to swear off food products from cloned animals. But consumers are likely already eating meat and drinking milk from the offspring of clones, which are technically not clones, without even knowing it. To match Special Report FOOD/CLONING REUTERS/Enrique Marcarian/Files (ARGENTINA DRINK HEALTH SCI TECH FOOD BUSINESS)
REUTERS/ENRIQUE MARCARIAN