The Transportation Security Administration says passengers flying into the United States from certain countries will be subject to enhanced screening techniques, such as body scans and pat-downs.
Starting Monday, the agency says, all passengers on U.S.-bound international flights will be subject to random screening.
In addition, anyone traveling from or though nations regarded as state sponsors of terrorism _ as well as "other countries of interest" _ will be required to go through enhanced screening.
The State Department lists Cuba, Iran, Sudan and Syria as state sponsors of terrorism. The "other countries" whose passengers will face enhanced screening include Nigeria, Yemen and Pakistan.