Section 1606 of Title XVI  Division A of the Recovery Act  which imposes the Davis-Bacon “prevailing wage” requirements on “projects funded directly by or assisted in whole or in part by and through the federal government pursuant to this Act shall be paid wages not less than those prevailing […] in accordance with [the federal prevailing wage statute (Davis-Bacon)]” does not apply to a project merely because such project is financed with direct-pay Build America Bonds eligible for the 35% (of interest paid) refund