I want to know the answer to the following question:
When was the construction of an airport in Saint Helena announced?
All the background I'm provided with is that "However an approved bidder, the Italian firm Impregilo, was not chosen until 2008, and then the project was put on hold in November 2008, allegedly due to new financial pressures brought on by the Financial crisis of 2007–2010.". Is that enough to answer the question?