The Government is not liable for the unauthorized acts of its agents. Further, without a statutory or contractual provision for interest and attorney fees claimed, reimbursement of these items must be denied. Several Massachusetts National Guard technicians ,claim reimbursement for costs of interest and attorney fees they indicate they incurred because they were mistakenly placed under the Federal Civil Service retirement system without authority. The National Guard Bureau, Departments of the Army and the Air Force, in submitting the technicians' claims to us, recommends payment because of the mistake, but states it could find no authority to allow the claims. We find that the claims may not be paid because there is no contractual or statutory provision permitting reixibursement of the interest or attorney fees requested.