[QUOTE=Lestat]@ Fiona & Tony: the advantage of ammonium nitrate is that it is freely available, it's used as fertiliser. That's the problem with some of these bomb makers, the components to make them are freely available since they have a host of legitimate uses and you can't just forbid their sale.
Of course I suppose they spread their purchases of the stuff and even then it might be that a large purchase of it triggered the interest of the police and intelligence services.[/QUOTE]
No, I know it's found in fertilizer that can be bought anywhere (that's why it's a popular choice for homemade bombs) but three tons of it? Are you kidding me? To have that much and still need to mix it with other chemicals to make the explosive? Why do they need all of it?
[QUOTE=Lestat]Dosage for fertilising is in the low hundreds kg/ha, so in terms of farm size in the US and Canada, the purchase of such an amount would not necessarily be suspicious, depending on who is buying.[/QUOTE]
This is a good point as I hadn't thought of it this way, but I just didn't figure they were the farming-types either.
