If a foreign country fails or refuses to make payment in full on any claim made under subsection (a)(2) of this section within one hundred and twenty days after the date on which such country is notified pursuant to subsection (a)(1) of this section, the Secretary of State shall transfer an amount equal to such unpaid claim or unpaid portion thereof from any funds appropriated by Congress and programed for the current fiscal year for assistance to the government of such country under the Foreign Assistance Act of 1961 [
22 U.S.C.
2151 et seq.] unless the President certifies to the Congress that it is in the national interest not to do so in the particular instance (and if such funds are insufficient to cover such claim, transfer shall be made from any funds so appropriated and programed for the next and any succeeding fiscal year) to