WASHINGTON (AP) -- Former President Jimmy Carter says that despite changes designed to eliminate voting problems in Florida - where the disputed 2000 presidential election was decided by only a few hundred votes - conditions for a fair election in that state still don't exist. "The disturbing fact is that a repetition of the problems of 2000 now seems likely," Carter wrote in an opinion piece published Monday in the Washington Post. Touchscreen machines were introduced in Florida after the 2000 election, when punch-cards were responsible for delaying the outcome of the race between George Bush and Al Gore. Bush...