Originally Posted by dakaix

Yet the point you've missed, along with a few other contributors here, is that it doesn't need to be an IED.

Consider the impact of a container full of PAX luggage stuffed with devices all with lithium batteries, one of those happens to have been tampered with by someone with an ulterior motive. Said device triggers a thermal runaway in its battery, resulting in a cascade chain with the rest of the container, somewhere over the atlantic... and we can all foresee the result.