"when inspectors arrived in Iran in mid-May and asked to revisit installations they saw in February or April, they were astonished to find empty spaces. When they questioned their Iranian escorts, they were greeted with blank stares. “What installations?” the officials asked.
The inspectors pulled out photos from previous visits and showed the Iranian officials what had been there before. The Iranians dismissed them as having been shot in other places that looked the same - or grafted there by “hostile intelligence bodies.”
When the inspectors persevered and reported the existence of aerial photos showing the exact location of the missing facilities, the Iranians shrugged.
The Iranians had amazingly dismantled and spirited away all the structures containing incriminating evidence of continuing uranium enrichment for weapons production so completely that there was no sign a building had ever stood there. The fresh flowerbeds were still in the same places as before but the lawns had been extended to cover the former sites, most probably with thick layers of earth. All the inspectors could do was to remove soil samples and take them away."
The old bury-the-evidence-trick. Seems to be popular in the Mideast.
Re:#28
On second thought, maybe it's more a case of, "Now you see it, Now you don't"