We should be able to search RE for "New" duplicate constituents with out having to go through the entire database. I download new donors everyday and have to search one by one after I've downloaded to make sure there are no duplicates. I should be able to batch them and search the new batch only and not spend time searching each constituent. I had 100 plus to search through and only 4 were duplicates. See my point!!!
If you add the records in a batch you have the option to check for duplicates as part of the batch validating/commit process.