It is protection for Saddam to have biological and chemical weapons, because, in the final analysis, if pressed, if he is surrounded in Baghdad, he will threaten to use them. He's capable of that. This is a sort of Samson complex--if you push me too hard, I'll bring the house down, on myself and on everyone else. Washington realizes that this is a possibility. For obvious reasons, it's not talked about openly. No one in Washington wants to tell the American people that Saddam is still capable of blackmailing us. They're acting as if he is capable of blackmailing them, but they are not going to admit it openly.Interview with Said Aburish, PBS Frontline
It was meant to be discovered and analyzed, but with several cutouts to avoid overt proof of origin.
If they can make grams, they can make tons, and they could have easily smuggled into the USA a hundred or a thousand kilo sized sealed glass jars of weapons grade anthrax spores.
A dozen Iraqi agents with ten jars each could shut down the 12 largest US cities for weeks or longer, and kill tens of thousands if all of the jars were smashed the same day on subway tracks etc. Shutting down the 12 largest US cities for a month would wreck our economy.