Democrats are prepared to filibuster to block any anti-abortion nominee proposed to replace Sandra Day O'Connor on the Supreme Court, Sen. Barbara Boxer, D-Calif., said Tuesday. "The filibuster is on the table. It's been on the table for 200 years," Boxer said when asked what methods could be used to block a Supreme Court candidate who would seek to overturn Roe v. Wade, the three-decade old decision legalizing abortion. -SNIP-Boxer called a threat to legalized abortion an "extraordinary circumstance." "It means a minimum of 5,000 women a year will die. So all options are on the table," she said. Boxer...