Two Wal*Mart employees were arrested at their store in Geneva on Saturday, and charged with undercharging other store workers and customers.   Store loss prevention officers provided Troopers with security video, and say they've been investigating since September.   33 year old Adarius Bradley and 29 year old Zameika Porter, both from Geneva, are charged with larceny.  They are due back in Geneva Town Court on December 12, 2011.