True, but...
"US intelligence agencies do have a clear “duty to warn” any individual, US citizen or not, of any known violent threats against them. A 2015 directive to the National Security Act, issued by Director of National Intelligence James Clapper, requires the US to give “non-US persons” notice of “impending threats of intentional killing, serious bodily injury, or kidnapping.”
The US knew that Khashoggi was a target. US intelligence agents intercepted a plan to lure Khashoggi back to to the US, the Washington Post reported Oct. 10. An unnamed National Security Agency official also told the Observer’s John Schindler that US intelligence had learned that Riyadh “had something unpleasant in store for Khashoggi,” at least a day before Khashoggi went to the embassy in Istanbul.
The “threat warning was communicated to the White House through official intelligence channels,” Schindler writes, but it’s not clear whether Khashoggi ever received the warning."
https://qz.com/1428499/jamal-khashoggi-what-trump-owes-khashoggi-under-us-law-and-constitution/
Kashoggi told friends that the Saudis were out to get him.... so he did know.
