Okay, I've scoured erowid.org, justice.gov/dea, NYC, DC, and Houston DEA branch websites, and the obvious - Wikipedia and Google. Google search terms involved quote marks around various combinations of 'cocaine', 'kilo', 'seizure', 'transport', 'distribution', 'consistency', and 'qualities (of)'.
I have learned more about cocaine than I ever knew possible (including some details that help my plot along) - except for the main three things I need.
1. When compressed into kilo 'bricks' for overseas transport, what is the texture and consistency? Does it break down easily?
2. A dealer-slash-transporter makes off with a little less than 1 kilo. By the time he could have access to it, I'm assuming it would have already been broken and separated out into smaller packages, is this correct? Or would he be able to obtain a full brick?
3. Disposal. Character (very reluctantly) has to dispose of about half of the coke - situation is rushed and profit be damned, at this point he's just trying to save his skin. I currently have him emptying and flushing everything down the toilet (assuming it's already been separated out, as above), but am not sure if this would fly. How would one get rid of this much in a hurry? No one's beating down the door, but it needs to be within a few minutes. Stashing it anywhere is not an option; it has to be gone.
Any help at all would be appreciated. Or if you know of a drug enforcement agent who would be willing to answer these questions, please let me know.
Oh, and setting is current day USA; character obtained cocaine on west coast.