Friday's annual March for Life will bring thousands of anti-abortion protesters to the Supreme Court, marking this week's 40th anniversary of the justices' Roe v. Wade decision that legalized abortion nationwide. The event underscores the continuing intensity of a debate that has spawned well-financed lobbies on both sides at the federal and state level. 

Although the 113th Congress has been in session less than a month, the issue of abortion already is on the docket. A search using Sunlight Foundation's Scout, which allows users to track issues in Congress, the 50 state legislatures and the Federal Register ...