On the one hand, one would assume that Wikipedia is more reliable than _most_ sources U. S. Intelligence uses.
On the other hand... imagine that someone from the Policy Counter- Terrorism Evaluations Group gallops into the President's office excitedly waving a computer printout and saying "We have hard, actionable intelligence that Iran's so-called 'centrifuge tubes' are actually intercontinental missiles, which they have given to Al-Qaeda to fill with radioactive anthrax..."
...and it's a Wikipedia article dated April 1st and the last diff is by someone with a funny name.