In the scene in which Janis Hawk meets with Stanford Wedeck, his (coffee) cup is visibly steaming from some camera angles and not steaming from others.
The professor says there was a complete power outage and all the hard drives were erased. Hard disk drives must be erased manually or they need to be exposed to extremely strong magnets - powerful enough to penetrate the steel housings and large enough to create a magnetic field able to affect the entire stack of platters. Cutting the power does nothing but shut down the computers.
When showing Kandahar, Afghanistan at 10:28 it is in fact an image of old Sana'a city in Yemen.
Janis when speaking to Marshall after he recruited her for the CIA to infiltrate the unknown group says she'll be a double agent. This is incorrect, since once she began working for the unknown group against the FBI she would be a double agent. Once she began working against the unknown group for the CIA, she would in fact be a triple agent. A triple agent is defined as "A spy who pretends to be a double agent for one side, while he or she is actually a double agent for the other side."