North Korea and Iran both have orbital launch vehicles. If you can put something in orbit, that's most of the way to putting something in Times Square or DC.

This hasn't happened yet. And much easier, more deniable attacks like car bombings of these places also hasn't happened to any real degree.

The mass shootings in the US are mostly performed by Americans, usually right-wing Americans, and the percentage performed by foreigners is close to zero. Looking forward to some right wing American replying linking to individual examples of foreigners doing mass shootings as though that disproves the point.