Security

I’m in South Korea at the moment and I think I’m being cyber stalked by the US military. Hinky things have been happening when I try to post on blogger. I remeber hearing somewhere that the SK government has some control over blogger accounts, but can’t remember where I read that. Does anyone know where that’s at?
I don’t feel particularly comfortable having spooks read my personal communications, so I have more than a passing interest in security. For the record I don’t intend to wage a terrorist war or even break any laws. It’s a matter of principal.
I was planning to move over to WP when I got some tech issues sorted, but this just provided some impetous. How secure is a WP blog? I realise it probably wasn’t designed to withstand attack by shadowy government agencies, but I’d be interested to know. I’m fairly computer illeterate – does the security of a blog depend mostly on the sever it’s on? What things could I do to lessen the chance of the intelligence people screwing me about? I’m posting from an internet cafe (which probably doesn’t help – I think the SK government has fairly far-reaching internet monitoring laws), but when I get a computer, should I be running Linux for example?
The irony is I didn’t use to care much about internet privacy. Now I do.
So any help you can give me would be most appreciated – links to stories, articles, a computer illiterate’s guide to securit, anything!