Most the countries you've listed you can't be even searched without a warranty. In the US you can be imprisioned w/out one or notification to your family.<p><a href="http://politics.slashdot.org/story/10/01/14/2226219/Obama-Appointee-Sunstein-Favors-Infiltrating-Online-Groups" rel="nofollow">http://politics.slashdot.org/story/10/01/14/2226219/Obama-Ap...</a>