They've often failed to detect new weapons programs, like the Iraq nuclear program that was unexpectedly discovered after the 1991 war.
And unexpectedly discovered one of the occupants of the city.
The whereabouts of this material is sometimes discovered unexpectedly.
An extensive search five months later for the man's body failed, but unexpectedly discovered the body of another man who was not identified.
He was discovered in a bed of bamboo reeds unexpectedly by one of his monks.
It was then that nine-year-old Brandon unexpectedly discovered that he had an older twin brother.
A rare surviving print was unexpectedly discovered in an antique market in Osaka.
Dr. Svoboda unexpectedly discovered that new synapses are formed in the adult brain.
He unexpectedly discovered one adhesive that formed itself into tiny spheres that did not melt or dissolve.