Bubka insisted he had received more guarantees the track would be kept during a three-day inspectionvisit in September before London withdrew its bid to host the 2015 athletics World Championships.
Questions have been raised over the Bank of Italy's supervision after an internal document obtained by Milena Gabanelli, an investigative reporter, showed an inspectionvisit to Monte dei Paschi in mid-2010 revealed the existence of two derivatives contracts, highlighting the risks.
For his part, UN Secretary General Kofi Annan gave a cautious welcome to Iraq's invitation for the head of the weapons inspection team to visit Baghdad.
He cites the 1991 visit of an American inspection team to the Pechora radar in the Arctic Circle, when inspectors learned that the radar was passing along target-tracking information to a central command.
An internal Bank of Italy report, obtained by Italian media, details how a Bank inspection team first learned of the risky nature of the derivatives contracts on a visit to the bank from May to August 2010.