Regarding the Techniques That May Be Used in Airport Security

Multiple Choice

Regarding the techniques that may be used in airport security to detect lies, which of the following statements is/are TRUE?

A) When a person lies, extra brain areas have to be activated and these can be seen in fMRI brain images.
B) Infrared face scans are at least as accurate as polygraphs at detecting lying.
C) Many of the new techniques will look directly at brain activity rather than measuring indirect signs of emotional arousal.
D) All of these statements are true.