I got a 90-day Non-Immi-B Visa from the Thai Embassy in Phnom Penh, Cambodia, in September and last month got Thai Immi in Bangkok to OK the Visa to next Sept, 2007. During the 3 days it took the Thai Embassy in Phnom Penh to process my application, I saw no other farang get a Non-Immi-B Visa. Indeed, several farang seeking the particular Visa were immediately turned away at the application window with no Visa at all. Other applicants for a 90-day Non-Immi-B Visa were given a 60-day tourist Visa instead. It is true that just about 99% of farang who seek a Non-Immi-B Visa in Cambodia are turned away. This is the norm at the Thai Embassy in Cambodia. The situation in other neighboring countries isn't much different.
It took Thai Immi in Bangkok about 50 minutes to process my application for the Non-Immi-B Visa up to next September. So, unless someone right now can relate a specific experience of a background check, I'm with Johnny Rotten--that is, show me an official statement right now so I can believe the background check stuff. Granted, our names can be brought up on the screen by Thai Immi in moments, as happens when we enter the country and are processed by Thai Immi. If there's a problem, we'd know it then, would we not? Regardless, then there would be the matter of the mechanics of a background check or double check (by two governments).
I have friends at the U.S. Department of State in Washington DC, former colleagues (altho I never worked at DEPSTATE), who advise that, given the present anti-farang attitudes, policies and practices of the Thaksin bureaucracy that continues to dominate the Thai government in its day-in, day-out operations, Hanoi is the best place to seek a Non-Immi-B Visa, at least for the time being--that is, until the political situation becomes settled. But, as to the political situation, the advice was given to me before the New Year's Bangkok bombings. (By the by, has anyone tried Hanoi? I don't know of a single person.)
Now that the ousted political party is shamelessly resorting to ruthless violence, I'd say all bets are off. It appears that the political opposition is only beginning what can be expected to be a relentlessly brutal campaign to regain power. Consequently, farang teachers remain in Thailand at our own risk. Beyond the matter of farang teachers from the U.S, however, the U.S. Dept of State is now greatly concerned about the stability of Thailand itself. Thailand may not again see democracy or internal peace and stability for some time to come.
As with KFK, I'd been patiently considering my options. After the Bangkok New Year's bombings, however, I'm seriously considering looking elsewhere, to include a return to the U.S. (It actually seems safer there!)