WASHINGTON, Feb. 28 (UPI) -- The U.S. Congress is considering an apology for slavery, something five states have done in the past year. While it has apologized before, Congress never apologized for slavery, USA Today reported Thursday. "We've seen states step forward on this," said Sen. Tom Harkin, D-Iowa, noting resolutions in Alabama, Maryland, New Jersey, North Carolina and Virginia. "I'm really shocked, just shocked" that the federal government hasn't apologized. "It's time to do so." Harkin said he and Sen. Sam Brownback, R-Kan., will propose an apology for slavery and subsequent "Jim Crow" laws that furthered racial segregation. Among...