The commander of Iran’s special operations Quds Force, Qassem Soleimani, recently posted a controversial image to his Instagram account. It features Soleimani himself holding a walkie-talkie while the White House is engulfed in flames behind him. The caption reads, “We will crush the USA under our feet.”

Earlier this year, intelligence officials and former White House officials testified before Congress that an Iranian-supported attack on U.S. soil is not a purely fictional scenario. The officials acknowledged that “we do face a threat” due of the existence of “sleeper cells” within the U.S., directed by Iran and/or Hezbollah. And just a few weeks ago, the Justice Department indicted two Iranians on spying charges after they allegedly conducted surveillance on Jewish facilities in Chicago.