It was an MM not the Red Pill
They tell me it is good practice for being cross examined.
Ok I will try to limit my comments to the technical properties of a Possible Thermite
Ring or Rod Shaped Magnetic Material
Charged (magnetized) so that two poles are at opposite sides of the ring or on opposite poles of the rod.
The reach of the magnet is roughly equal to the spacing between poles. NdFeB magnets are very strong and are quite flammable. Eutectic mixing of Nd with steel can bring the melting point down to about 1100C
Inside the ring or around the rod would be a whiffle structure. Like a whiffle ball.
This will give high aerodynamic drag.
The whiffle and the ring create a light weight structure which can roll.
By the time the baggage compartment would rupture, the velocity would be below 500mph. The magnet structures would be dispersed in a rough asymmetric cone shaped area from the point of rupture.
Because of gravity this would be a cone shape on the floor of the impact area. Some would stick high up, but not many.
Two factors would allow them to be concentrated after dispersion, gravity and high velocity air flow.
The impact would have knocked the fireproofing off the steel in many locations.
The magnets would be dispersed on a surface plane that was heavily damaged, holes, twisting etc,
The airflow would be erratic but strong in some areas.
They would blow about on the surface until they encountered bare steel, a hole, or another magnet.
The ones encountering bare steel would be anchored.
The ones encountering holes will stick on just this, or just on the other side of a hole, out of the airflow. A hole in the steel, but not in the fireproofing nearby seems unlikely.
It would be a very difficult problem statistically to determine group size and dispersion.
Assuming that at least 50% of the material would group with one other magnet, you could get large groups containing .1 to .2 percent of the total material.
Assume 2000lbs of original material.
Some groups/ clusters could contain between 2 to 4 pounds of material. Say 10% of the total material is in clumps this size. At 3 pounds per cluster and 200 pounds this would be about 66 clumps.
As the bonding material flows from nearby heat source it could expose a surface that will ignite on contact with heated oxygen (not at room temperature).
Some will light immediately to minimal effect. Some magnets will go to areas where they will never light before the main clusters. If the magnets were not coated or had a coating that was not waterproof they will rapidly corrode in contact with water.
First Iteration