Rising seas and warming conditions threaten its existence.

VOA: special.2010.01.19

Iran was apparently forced to reveal its existence after it became aware that western intelligence agencies had known about it for years.

VOA: standard.2009.09.28

Tehran denies there was any secrecy involved, and that the plant hadn't reached the point where the government needed to disclose its existence.

VOA: standard.2009.09.28

Howard McKeon,ranking Republican on the House Armed Services Committee, questioned why, if the facility was designed for civilian purposes, Iran concealed its existence.

VOA: standard.2009.09.25

This would split the states of the Confederacy and might end its very existence.

VOA: special.2009.10.22

He notes that the makeup of the commission suggests it is more concerned with politics and using history and various historic facts to justify its own existence.

VOA: standard.2009.12.25

Democrat Ike Skelton, who chairs the House Armed Services Committee, said fact that Iran concealed the existence of the enrichment site is not consistent with its claims that the facility will be used only for peaceful purposes.

VOA: standard.2009.09.25