"Before you're critical of us, ask yourself two questions," Mayor Webb said.
Mayor Webb said the city's policies would be reviewed and an independent third party would review the files.
At a news conference last week, Mayor Webb announced the latest delay, and prudently declined to set any more deadlines.
Mayor Webb urged parents to volunteer at intersections, and 19 such volunteers will be trained this week as crossing guards.
"I won't hazard a guess," Mayor Webb said at a crowded City Hall news conference today.
But Mayor Webb and other proponents of the airport have insisted that no tax money will be needed for the project, which is being financed with bonds.
Mayor Webb has said that no tax money will be used on the project.
"America should redefine its relationship with Africa," Mayor Webb said at the meeting.
Mayor Webb hopes to expand trade and investment by leading a Colorado trade delegation to Africa later this year.
Mayor Webb's spokesman was among Denver residents surprised to be fielding calls from concerned relatives and friends this week.