Usec (USU), a supplier of low enriched uranium, is seeing relative strength and active call buying Friday on reports the Obama adminstration plans to increase government loan guarantees for new nuclear reactors. USU is up 29 cents to $3.98 and 7,800 call options traded through midday. The volume represents 14X the typical volume and compares to 380 puts. While Feb 4 calls are the most actives, some investors are showing interest in April 5 and 6 calls as well.