Housing Service Loan Guarantee Program in addition to other available funds: Provided further , That such fees collected shall not exceed $50 per loan. 740. (a) None of the funds made available in this Act may be used to maintain or establish a computer network unless such network blocks the viewing, downloading, and exchanging of pornography. (b) Nothing in subsection (a) shall limit the use of funds necessary for any Federal, State, tribal, or local law enforcement agency or any other entity carrying out criminal investigations, prosecution, or adjudication activities. 741. Of the unobligated balances from amounts made available for the special supplemental nutrition program as authorized by section 17 of the Child Nutrition Act of 1966 ( 42 U.S.C. 1786 ), $600,000,000 are rescinded. 742. (a) (1) No Federal funds made available for this fiscal year for the rural water, waste water, waste disposal, and solid waste management programs authorized by sections 306, 306A, 306C, 306D, 306E, and 310B of the Consolidated Farm and Rural Development Act ( 7 U.S.C. 1926 et seq.) shall be used for a project for the construction, alteration, maintenance, or repair of a public water or wastewater system unless all of the iron and steel products used in the project are produced in the United States. (2) In this section, the term iron and steel products means the following products made primarily of iron or steel: lined or unlined pipes and fittings, manhole covers and other municipal castings, hydrants, tanks, flanges, pipe clamps and restraints, valves, structural steel, reinforced precast concrete, and construction materials. (b) Subsection (a) shall not apply in any case or category of cases in which the Secretary of Agriculture (in this section referred to as the Secretary ) or the designee of the Secretary finds that— (1) applying subsection (a) would be inconsistent with the public interest