Complex sentence: Despite the presidential order, a CIA scientist acquired around 11 grams of a deadly shellfish toxin from SOD personnel at Fort Detrick and stored it in a little-used CIA laboratory where it remained, undetected, for over five years.
Split into simpler sentences: Despite the presidential order, a CIA scientist was able to acquired an estimated 11 grams of deadly shellfish toxin from SOD personnel at Fort Detrick. The toxin was then stored in a CIA laboratory where it remained, undetected, for over five years.