Danish forces in Iraq unearthed 36 leaky, rusty, decomposing chemical artillery shells near Basra that have been buried for over 10 years, presumably dating back to sometime around the Iran-Iraq war.
So, how does this change a single thing? These weapons were buried and apparently long forgotten before Iraq even began to destroy their chemical weapons stockpiles -- which, incidentally, they often did through burying. Thirty-six old shells are a blip; most likely a forgotten, squad-level decision to bury such ammo before they pulled back in the face of enemy "human wave" attacks. Looks like the unit never reclaimed them, and weapons inspectors never knew about them either.
In other news, a French farmer found what appeared to be an unexploded WWI-era landmine while digging a hole for a tree in his garden. He promptly stopped digging, carefully filled the hole, and planted poppies instead.