There are some countries with limitations.
Here you can see the list of prohibited countries (which is constantly updated): Afghanistan, Algeria, Bangladesh, Bolivia, Central African Republic, Cuba, Democratic Republic of the Congo, Ecuador, Egypt, Haiti, Iceland, Indonesia, Iran, Iraq, Kyrgyzstan, Lebanon, Liberia, Libya, Macedonia, Malaysia, Mexico, Morocco, Namibia, Nepal, North Korea, Pakistan, Saudi Arabia, Somalia, Sri Lanka, Sudan, Syria, Taiwan, Vietnam, Yemen, Zambia, Zimbabwe.