They warned their citizens staying in Moscow to avoid large gatherings. You could argue Russia chose to ignore that, because it was America giving the warning.

Edit. I just reread your comment. I only had 1/2 a cup of coffee 😆. I see what you mean. Lambs to the slaughter.

The man's delusional 😆

In remarks that aired days before the attacks, Putin said the West’s warnings of any potential attacks in Russia were part of an “attempt to intimidate, destabilize our country.”