For a while, Mohammed worked as an engineer at the Port of Anzali.

NPR: Iran Facing Dangerous Brain Drain

Engineer Phillip Vann, who lives in Port Pendennis, close to the docks, said he did not think "risks should be taken with the public in general".

BBC: Falmouth explosion fear from ammonium nitrate store

Then they hired an engineer to fashion a meter with relay switches and a communications port.

FORBES: OutFront