When the general is on his way to his daughter's funeral, the colonel ends a cell phone conversation with him abruptly. We then hear a dial tone on the general's end as he looks at the phone. Cell phones do not have dial tones.
When the scientist is entering the "Explosive Payload" and "Nuclear Weapon Yield" values for the calculation of the nuclear bomb deaths, she incorrectly enters the units as "KG" (should be "kg" for kilograms) and "KT" (should be "kt" for kilotonnes) respectively.