On Fox they are really focussing on the driver's lack of a manifest.
If the contents of the trailer are hazardous and the driver does not have a manifest, its a $ 10,000 fine.
There was some information posted by freeperfromnj (post 450) found at the Miami Herald.
By ALDO NAHED, JAY WEAVER and ROB BARRY
anahed@MiamiHerald.com
"FBI spokeswoman Judy Orihuela said an Iraqi truck driver trying to get into the port was in custody after the cargo in his semi did not match what was declared on its manifest and he lied about being alone.
Federal sources said the manifest described the cargo was auto parts, but that is not what was found. Instead, authorities found two 55-gallon containers in the back of the truck."
If this report is correct there was a manifest.