((a)) ** Priority** In selecting agreements to be entered into under this subchapter, the Secretary shall give priority to agreements providing for the export of agricultural commodities to developing countries that—
((1)) are undertaking measures for economic development purposes to improve food security and agricultural development, alleviate poverty, and promote broad-based equitable and sustainable development; and
((2)) demonstrate the greatest need for food.
((b)) ** Private entities** An agreement entered into under this subchapter with a private entity shall require such security, or such other provisions as the Secretary determines necessary, to provide reasonable and adequate assurance of repayment of the financing extended to the private entity.