As you can see in the link below, Al Quaeda has already made this a priority, with the intent to include plutonium in IEDs to contaminate areas for years:
http://www.telegraph.co.uk/news/worldnews/wikileaks/8296956/WikiLeaks-al-Qaeda-is-planning-a-dirty-bomb.htmlBut as far as reprocessing, I suggest that you go back up to the link provided in #2 that points out that it is the French reprocessors AREVA that is trying to start up the reprocessing industry here in the US. All of the other countries outside of France that originally signed up with France to reprocess their spent fuel rods have backed out due to economic, environmental anad security reasons, leaving only the French nukes as their sole customer and they are desparate to find a major new supplier, namely the US. This despite all of the very real issues of extremely expensive process, no plans on what to do with the tons of extracted plutonium, and no what to do with the large amount of radioactive remnant material once the "useful" stuff has been extracted.
Do you trust these guys to do the right thing?