Excellent article. I think the best thing to take away from it is this little, innocent sounding line:

"No matter what the reason, don’t ever write..."

This says it all. If we must fear our government when engaging in innocent activity, then we have given our government too much power.

Schneier addressed this in one of his many posts on privacy:

"How many of us have paused during conversation in the past four-and-a-half years, suddenly aware that we might be eavesdropped on? Probably it was a phone conversation, although maybe it was an e-mail or instant-message exchange or a conversation in a public place. Maybe the topic was terrorism, or politics, or Islam. We stop suddenly, momentarily afraid that our words might be taken out of context, then we laugh at our paranoia and go on. But our demeanor has changed, and our words are subtly altered." - http://www.schneier.com/blog/archives/2006/05/the_value_of_p...