What is required in order to be allowed access to reading rooms in the library of congress? evidence of us citizenship a purchased library card for either permanent or temporary use a current, valid picture identification membership to the us congress

The one that's required in order to be allowed access to reading rooms in the Library of Congress is: evidence of US citizenship 

Library of Congress could be use by normal citizen as long as we have the library card.
The library card itself is free, but in order to make that we need to complete a registration process by showing our states produced evidence of US citizenship and driver license or password.

Communicating with the dead was common, it wasn’t seen as bizarre or weird,” explains murch. “it’s hard to imagine that now, we look at that and think, ‘why are you opening the gates of hell? ’