Makes TVs explode

Suddenly, the ship was rocked by a thousand lesser explosions.  The noise sounded like a thousand firecrackers going off at.  Rhee grabbed the horn.  “What is happening?” he cried in panic.
“Sir,” an unidentified voice said over the speaker.  “It’s the cargo hold.  There is heat, and fire--” Then the speaker went dead.
Of course!  Koh understood at last.  That sound came from the containers stacked in the ship’s cargo hold, where thousands of Korean-made televisions being exported to America were being stored.
The heat below the hull must be tremendous, Captain Koh realized.  The explosions were the sound of thousands of cathode ray tubes bursting apart.