Extracted Ion Chromatograms pull the ILA-target compounds miraculously out of the background;
great for identifying ILA's, but scarily able to pick up potentially-benign levels of background contamination.

I'd like a signal-to-noise of >3 before even admitting the compound was there,
left alone comparing it and it's peers to a reference ILA.
Comparing ILA's is like comparing LEGO toys broken down into heaps of clumps and individual brick; are the blocks the same/different in comparable quantities, or are just a few block types/-colours less/missing (i.e. ILA weathering) between LEGO heap A and LEGO heap B.
The sort of thing where you would rather be with the Defense than in the box...