Pledge to prosecute Yushchenko poisoners  The Ukrainian
opposition vowed last night to push for the prosecution for
"attempted murder" of those behind the poisoning of presidential
candidate Viktor Yushchenko, just as his chief doctor said he
was days away from identifying the exact substance that nearly
killed him.  Mr Yushchenko has already accused the authorities
of trying to kill him with a poison that badly disfigured his
face, although his campaign has not named any individual. The
pledge to prosecute will significantly raise the stakes of the
forthcoming repeat of the presidential run-off on Boxing Day, in
which Mr Yushchenko will face prime minister Viktor Yanukovich.
Petro Poroshenko, an MP and one of Mr Yushchenko's key
confidants, said the poisoning had benefited Ukrainian
authorities. "We do not want to mention a specific person now,
but will make it public after December 26," he said.  He said he
had no suspect in mind but added: "This was teamwork and not a
single person."  He said there was "n