After Jilly Kitzinger gets a cigarette from Vera Juarez, it changes its place almost every time the camera angle changes.
Errors in security procedures: There are a number of instances of actions that would seriously violate security in the sequences at CIA HQ, the most glaring of which is Esther Drummond receiving a call on her personal cell phone from inside a secure area, which would never be allowed.
The "diabetic" needle that Danny donates is much too large to be a syringe used for insulin. The needle is too long and anything that could hold that much insulin would kill a diabetic.
When Jilly Kitzinger meets Vera Juarez for the first time, Lauren Ambrose's microphone wire is clearly visible towards the lower right hand side of her jacket.
Much is made of the lack of deaths causing an imminent and seemingly unavoidable population explosion but the global death rate is only about 40% of the birth rate anyway. The world is already experiencing a huge and unsustainable growth in population. If there were no deaths the problem would be worse in the long run but it wouldn't be an instant disaster.
Birth rate: 19.86 births/1,000 population (2010 est.).
Death rate: 8.37 deaths/1,000 population (2010 est.).