The U.S. State Department closely monitors countries around the world to ensure that American citizens are aware of issues that may affect their international travel. The following information is issued by the U.S. State Department and can be found on their website:
Travel Warnings are issued when the U.S. State Department decides, based on all relevant information, to recommend that Americans avoid travel to a certain country.
Travel Alerts (previously: Public Announcements) are a means to disseminate information about terrorist threats and other relatively short-term and/or trans-national conditions posing significant risks to the security of American travelers.
Country Specific Information (previously: Consular Information Sheets) are available for every country of the world. They include such information as location of the U.S. Embassy or Consulate in the subject country, unusual immigration practices, health conditions, minor political disturbances, unusual currency and entry regulations, crime and security information and drug penalties.