CNN
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Many would-be travelers go online to plan their vacations, whether that means looking for the best flight deals and hotel recommendations or more nitty-gritty info about whether their destination of choice requires a visa.
In the United States, those preparing for an international trip can check out the State Department’s website for up-to-date info about other countries, which are ranked from “Level 1: Exercise Normal Precautions” to “Level 4: Do Not Travel.” These rankings can change based on political conflicts, natural disasters and other current events as things happen in real time.
But the travel advisory system also works in the other direction….
