For example, if the US has intelligence about a Nigerian man between the ages of 22 and 32 whom officials believe is a threat or a known terrorist, under the new policy all Nigerian men within that age range will receive extra screening before they are allowed to fly to the US If intelligence later shows that the suspect is not a terrorist, travelers will not be screened against that description.
The new procedures replace those that went into effect after the attempted bombing of a jetliner en route to Detroit on Christmas Day. Those rules required extra screening, such as full-body pat-downs, for everyone from, or traveling through, any of these 14 countries: Afghanistan, Algeria, Cuba, Iran, Iraq, Lebanon, Libya, Nigeria, Pakistan, Saudi Arabia, Somalia, Sudan, Syria and Yemen.
The new terror-screening strategy, to be announced Friday, is a result of a review ordered by President Barack Obama.
The intelligence-based targeting will be in addition to screening names on terror watch lists. The government's "no fly" list of suspected terrorists, who are banned from flights to, or within, US territory, has about 6,000 names.
A Nigerian man, Umar Farouk Abdulmutallab, has been charged with boarding a Detroit-bound airliner on Christmas Day with a bomb hidden in his underwear. One of the reasons the alleged bomber was able to board the flight in Amsterdam was that his name was not on a US terror watch list. However, officials failed to even share a description of the suspected terrorist.
The new policy should significantly decrease the number of innocent travelers from the 14 countries who have been inconvenienced by the extra screening, the official said.
In the past three months, senior US security officials have been meeting with foreign countries to discuss how to improve aviation security, and many countries have adopted enhanced screening methods, including the use of body-scanning machines.
The US does not have the authority to screen passengers in foreign airports. But if air carriers do not agree to follow the US guidelines for international aviation security, they could be fined and potentially banned from operating flights to the US.
