A ship security concept being marketed out of Houston would be a welcome tool for authorities if terrorists tried to hit the Port of Houston, the FBI said. While the agency doesn’t endorse commercial products, Special Agent Jim Walsh said, a remote-control security system like that developed by VIP Systems could be useful. Among the features of the VIP system is one that would allow authorities to see, via satellite, inside a vessel like an oil tanker at sea and remotely shut down its engines if it were commandeered.