WASHINGTON (AP) — Further evidence that times are tough: It now costs more than a penny to make a penny. And the cost of a nickel is more than 7 1/2 cents. Surging prices for copper, zinc and nickel have some in Congress trying to bring back the steel-made pennies of World War II, and maybe using steel for nickels, as well. Copper and nickel prices have tripled since 2003 and the price of zinc has quadrupled, said Rep. Luis Gutierrez, D-Ill., whose subcommittee oversees the U.S. Mint. Keeping the coin content means "contributing to our national debt by almost...