From Space.com — “In quantum mechanics, if a reaction is possible, the opposite reaction is also possible, Witten explained. Processes should be reversible. Thus, if a person can be swallowed by a black hole to create a slightly heavier black hole, a heavy black hole should be able to spit out a person and become a slightly lighter black hole.”  Here are a bunch of articles about black holes in the new issue of Science.  (Limited to subscribers, but some of the authors have similar articles in the arXiv.)