At the end of Raiders of the Lost Ark it is shown that the Ark is in a big army warehouse among thousands of similar looking crates, and it is hinted that this means it will never be opened ever again
What is the movie explanation for doing this? The US government send Indy to retrieve it, so clearly they valued it. They knew the Germans were looking for it, and so knew it was valuable for Hitler as well, either as a weapon or a propaganda machine. I can understand the army confiscating it, and not making it public in a museum, as Indy would probably want, but why would they just seal it away without studying it further?
The dialogue with the US government official hints that the US doesn't really intend to study or even open the Ark again any time soon, and would rather let it remain lost among thousands of similar looking boxes. Why did they want to do that?