Checking existence of unread_story:user:feed, assembling on the fly. This breaks down when a feed has no unread stories, but we may need to figure out a zero cardinality list solution.
Checking existence of unread_story:user:feed, assembling on the fly. This breaks down when a feed has no unread stories, but we may need to figure out a zero cardinality list solution.

samuelclay/NewsBlur,samuelclay/NewsBlur,samuelclay/NewsBlur,samuelclay/NewsBlur,samuelclay/NewsBlur,samuelclay/NewsBlur,samuelclay/NewsBlur,samuelclay/NewsBlur,samuelclay/NewsBlur,samuelclay/NewsBlur,samuelclay/NewsBlur