Censorship in Myanmar has previously been a real pain
Guy Delisle describes in his "Chroniques Birmanes" that after mentioning something in which triggered a filter, the Medecins Sans Frontieres emails in and out of Myanmar were all then subsequently censored "by hand": read by a human before being allowed to go through, causing them to take weeks to be delivered, if at all.
A friendly word with the appropriate bureau restored normal service, but all the same....
It puts the current hoo-ha with the NSA in perspective: imagine waiting a week for the government to read each one of your emails before passing them on.
*Chroniques Birmanes is a graphic novel: not exactly the most official of news sources. Very good though.