I accept the correction for 2. I should have been more precise and mentioned that there are rules regarding exemptions etc.Quote from GG1972:
Wrong on 2 & 3
if you are born in us or your parents born in us you can attain citizenship str8 without going thru greencard to citizenship process that most aliens have to go thru
for taxes upto 84k earned in another country is tax free though u must report it even if u don't have to pay taxes on it- over the top of 84k you get tax credit if you pay taxes in another country with which us has a tax treaty ( pretty much Canada aussi uk etc)
check and verify all info on IRS site b4 you beleive anything said on these forums
You're incorrect on 3. A former US citizen is subject to immigration laws of the US same as any other alien (with a special exception for citizens who renounced before they reached the age of 18). Furthermore, there's the 1996 "Reed Amendment", which would, if properly enforced, mean that a former citizen who is determined to renounce their US citizenship for purposes of avoiding taxation may be inadmissible to the US and ineligible for a visa.