Did Trump just spill classified military secrets on Twitter?

Whether accurate or not, it’s an alarming admission.

President Donald Trump boasted in a tweet Monday evening that the United States had “more advanced” missiles than Russia, following a rocket explosion in the country that left five nuclear engineers dead.

If his tweet is accurate, it suggests the United States has technology thought to have been abandoned over half a century ago. It also means the president may have revealed classified information about weapons that the U.S. military may currently possess.

Some experts believe the president may have simply been making things up once again.