Here is officially disclosed information about the US government and some "semi" private corporations did indeed examen materials from UFO crashside.
The funny thing is, it is official, but the media stays silent...
http://www.niburu.nl/index.php?articleID=21531 (http://www.niburu.nl/index.php?articleID=21531)
Most intriguing. Also that they kept out of the report the German- or Russian language markings :-)
Rather keep Alien rumours alive, than leak info that "the enemy" is sending Saucers over the ocean.
If the US ever needed a reason to make some extra nukes, this is it. If the enemy has a saucer plant, don't build saucer, throw on a nuke!