If you want to get into the details of the ignition point for the 08-09 crash it was the rating system of CDO's, rating A when they were packed to the gills with just crap, literally ticking time bombs.

We are sitting on a time bomb waiting for the next crisis to ignite which is going to be global.

If you are writing specific copy, such as a letter to landlord doing an eviction, code enforcement lottery winner or maybe a foreclosure "victim," the copy may have irritated this person because it re-ignited the pain of what he/she is going through.