Ingrid Wickelgren; Limit Youth Football Practice Hits for Brain Health; In Scientific American; 2013-08-13; an audio podcast, with transcript.
Teaser: Changes in youth football practices cut total hits to the head in half, whereas leaving game situations unaffected.
Censorship of information on the Internet has been an increasing problem as the methods have become more sophisticated and increasing resources have been allocated to censor more content. A number of approaches to counteract Internet censorship have been implemented, from censorship-resistant publishing systems to anonymizing proxies. A prerequisite for these systems to function against real attackers is that they also offer blocking resistance. Dust is proposed as a blocking-resistant Internet protocol designed to be used alone or in conjunction with existing systems to resist a number of attacks currently in active use to censor Internet communication. Unlike previous work in censorship resistance, it does not seek to provide anonymity in terms of unlinkability of sender and receiver. Instead it provides blocking resistance against the most common packet filtering techniques currently in use to impose Internet censorship.