The American Association of Variable Star Observers (AAVSO) is a non-profit worldwide scientific and educational organization of amateur and professional astronomers who are interested in stars that change in brightness—variable stars. See http://www.aavso.org/visionmis.... It is not true that today only pro are doing useful work in astronomy. Variable stars are multiple and need long observations: I know people doing as a nice hobby and ... publishing: see http://www.dppobservatory.net/

Many people in industry are thinking that we need to be very careful in the near-future when using public-key cryptography. A catastrophic event is a possibility. See the next month workshop about catastrophic events related to cryptography and their possible solutions: CATACRYPT ( http://catacrypt.org/ ) near London. You're welcome to participate. With a committee where a lot of very important contributors. This talk at Black Hat this summer is thus very interesting. It was anticipated by a talk at CCC in Berlin in December 2011, see 28th Chaos Communication Congress (28C3), Berlin, 29 December 2011: talk by Renaud Devalière and Jean-Jacques Quisquater, in cooperation with David Samyde, The future of cryptology: which 3 letters algorithm(s) could be our Titanic? RMS Olympic, RMS Titanic, HMHS Britannic vs Discrete Logarithm, Integer factorization, Conjectured hard problems: talk is at http://www.youtube.com/watch?v=t4n7yUBtTt0 There was also a high-level workshop this year in January in Menlo Park about the end of RSA. The slides are here: http://catacrypt.org/rsa-isat-brief%20-%20Public.pdf with permission.