Practically all countries banned DDT.
None, there is nothing dangerous/r-rated about there music
No
No, you can't drive any vehicles in Dead Space.
Yes, Quorn has been banned in some countries due to concerns about its labeling and potential allergic reactions.
Monosodium glutamate (MSG) is not banned in any countries. However, some countries have regulations on its use in food products due to potential health concerns and require it to be labeled on food packaging.
No, Dead Space 2 is not released, therefore it cannot have a walk through.
Nope
As matter of fact, only one country left in the world has banned smoking, and it is the tiny Asian nation of Bhutan in the Himalayas.
no
As far as we know, President Obama is not "banned" from any countries. As with all presidents, he is more popular in some countries than in others, and certain countries like Iran or North Korea may have policies that discourage a US president from visiting, but it is doubtful that there is any official "ban" in place anywhere.
Not all countries compete; some smaller countries don't have any suitable athletes. Iraq has recently been banned from competing because of political interference in the sport selection process.