American Airlines Flight 444

That way, it would travel by air.

And on November 15, 1979, American Airlines Flight 444 departed Chicago for Washington, D.C., carrying the device.

During the flight, smoke suddenly poured into the cabin from the cargo hold.

Panic spread among the passengers as it filled the plane.

Harris is injured in the blast, but survives.

Nearly six months later, in November, Kaczynski returns to Chicago and sends a package that ends up in the cargo hold of American Airlines Flight 444, a Boeing 727 carrying 78 souls from Chicago to Washington.

On November 15th, the device ignites in-flight, filling the aircraft with smoke.

The pilots divert to Dulles and get the plane safely onto the ground, where a dozen people are treated for smoke inhalation.