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				About 50 employees at Three Square Market have agreed to the 
				optional implant of the chips, which are the approximate size 
				and shape of a grain of rice, said Tony Danna, vice president of 
				international sales at the River Falls-based company.
 The company, which employs 85, said it was the first in the 
				United States to offer staff the technology which is similar to 
				that used by contactless credit cards and chips used to identify 
				pets.
 
 The implants made by Sweden's BioHax International are part of a 
				long-term test aimed to see if the radio-frequency 
				identification chips could have broader commercial applications, 
				Danna said.
 
 "We've done the research and we're pretty well educated about 
				this," Danna said in an interview.
 
 The company is holding an Aug. 1 "chip party" where employees 
				will have the device inserted between their forefinger and thumb 
				using a syringe-like instrument.
 
 The RFID chips use electromagnetic fields to communicate and can 
				be read at a distance of no more than 6 inches (15 cm), Danna 
				said.
 
 Critics of using chips in humans include Nevada State Senator 
				Becky Harris, who in February introduced legislation that would 
				make forced installation of microchips illegal.
 
 "It is possible to hack the information that is contained within 
				the chips," Harris told a state Senate Judiciary Committee 
				meeting at the time.
 
 The company's CEO Todd Westby in a statement predicted the 
				technology could become popular among companies.
 
 "Eventually, this technology will become standardized allowing 
				you to use this as your passport, public transit, all purchasing 
				opportunities, etc.," he said.
 
 (Reporting by Taylor Harris in New York; Editing by Andrew Hay)
 
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