How far will the old order in Ukraine go to safeguard its privileges? News that opposition presidential candidate Viktor Yushchenko was poisoned suggests that it is desperate indeed. Three months after the alleged poisoning, questions continue to mount about how Mr. Yushchenko ingested what should have been a fatal dose of dioxin and who was responsible. The incident underlines the stakes in Ukraine's presidential ballot, which will be repeated in the days ahead after the original outcome was contested.

On Sept. 5, Mr. Yushchenko and his campaign manager dined with the head of Ukraine's security service. Within hours, he became gravely ill, but prompt treatment saved his life. While poison was suspected -- he accused the government of masterminding the act to prevent him from campaigning -- proof was not available until this month when doctors confirmed that Mr. Yushchenko had dioxin levels in his blood 6,000 times higher than normal.

With this evidence, Mr. Yushchenko has been able to force the security services to reopen an investigation into the incident, but it will not go forward until after the Dec. 26 ballot.