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Story summary
- The U.S. State Department updated its travel advisories in April, placing Iran at Level 4 'Do Not Travel' due to threats of terrorism, kidnapping, and arbitrary arrests.
- Saudi Arabia and Kuwait have moved to Level 3, urging Americans to reconsider travel.
- In Mexico, certain states have been upgraded to Level 4 following cartel violence.
- The advisory system ranges from Level 1 to Level 4, with Level 4 strongly discouraging travel.
