At 6:30 a.m. on April 24, 2012, federal agents, wearing Kevlar vests and with guns drawn, raided my home in Katy, Texas, with a warrant for my arrest. This was as shocking to me as it would be for any normal, law-abiding citizen.

I’m not a drug dealer, violent criminal or money launderer. I’m an engineer. In 2010 I helped stop the BP oil spill after an explosion on the Deepwater Horizon drilling rig left a damaged well spilling crude directly into the Gulf of Mexico.

On...