CNN:

An internal Customs and Border Protection memo obtained by CNN suggests that US border officers working at Canadian ports of entry were directed to detain and question travelers of Iranian descent, including American citizens, in the wake of the killing of a top Iranian general in early January, despite previous denials from the agency.

The single-page undated document, issued by the Tactical Analytical Unit of CBP's Seattle Field Office, is titled "Iranian Supreme Leader Vows Forceful Revenge after US Kills Maj. General Qasem Suleimani in Baghdad -- Threat Alert High."
 
The memo states that, among others, anyone born in Iran, Lebanon or the Palestinian territories between 1961 and 2001 should be vetted, along with anyone who has connections to those countries and territories. The focus is clearly placed on Iran and some of its potential sympathizers from the region.
 
CBP officials have previously denied that there was any directive to question people at the border based on ethnicity after dozens of American citizens of Iranian descent said they were stopped at a port of entry in Blaine, Washington, in early January following the general's death. Some were detained for hours and reported that they were asked detailed questions about their country of birth as well as religious affiliations and military service. Others alleged their passports and car keys had been taken by officers during questioning.
 
A source familiar with the document confirmed its authenticity to CNN.
The memo says to ask travelers questions about connections to the military, particularly Iran's Revolutionary Guard and its elite Quds force and is charged with carrying out and coordinating overseas operations.

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