[Ezekiel]

No weapons or contraband were found in the Mercedes, but base security noticed the air bag in the steering wheel of the Mercedes had been pulled out and re-attached with duct tape and had wires hanging free, the alert said.

Hmmm, making sure their trip to allah isn't thwarted by an airbag? If they plan to explode the car(s), why would they Cair about dismantling the airbags. Or do they intend to use the compartments to store their own explosive devices. Or the whole hanging wires mess is a diversion, but then again, Wile E. Jihadi ain't that smart.

[MarMema]

Airbags contain sodium azide

And I think this information is critical to figuring out what they were planning to do.