Iran has increased efforts to target U. S. personnel in the Middle East and other countries, according to a memo sent by the Director of National Intelligence Jay Clayton to Secretary of State Marco Rubio on Friday.
Source: [NBC News](https://www.nbcnews.com/nightly-news/video/iranian-plots-to-kill-americans-in-middle-east-have-reached-advanced-stages-intel-memo-warns-272179269503)