The technical solution can not solve all problems, wikimedia plans to activate HTTPS per default for all users: http://blog.wikimedia.org/2013/08/01/future-https-wikimedia-...
One of the problems is that certain countries block HTTPS (e.g. China), should wikimedia effectively block all chinese users from free knowledge that wikimedia aims to provide? https://en.wikipedia.org/wiki/Censorship_of_Wikipedia