The full faith and credit of the United States of America is pledged to the performance of this Guarantee. The Guarantee shall not be affected or impaired by any defect in the authorization, execution, delivery or enforceability of any agreement or other document executed by a Noteholder, A.I.D., the Fiscal Agent or the Borrower in connection with the transactions contemplated by this Guarantee. This non-impairment of the guarantee provision shall not, however, be operative with respect to any amount with respect to any loss arising out of fraud or misrepresentation for which the claiming Noteholder, is responsible or of which it had knowledge at the time it became a Noteholder.