When Song Heping pulled Mario out of the seawater for the third time, the latter had completely broken down.
He began to sob and wail.
"I really... really... really don't know... ugh—"
He pleaded for mercy while spitting out water.
The feeling of drowning is actually quite uncomfortable.
The waterboarding favored by the CIA essentially simulates the feeling of despair one experiences repeatedly entering a state of drowning.
Song Heping's interrogation methods were similar in creativity.
In fact, among all interrogation techniques, drugs are the most lethal.
They are uncontrollable, and unless one is not human, nobody is exempt from the influence of drugs.
The problem is that drug interrogations are not without drawbacks.
Every drug interrogation carries a risk, and it is very easy for the captive to die before any intelligence is extracted.
