[Destructive. People feared chaos, for it was uncontrollable. They feared death, for it was inevitable. They waged war to win freedom from fear - spreading it in perpetuity - and they devised weapons and hallucinogens.

Crane longed to have his tools back in his hands again. They were more than instruments of war. They could help people see. He tastes his coffee, then sets it aside.]

Splendid.

[An approval of the taste, or of Walt's skill in creating the blend? Crane wouldn't fill him in. Instead, he'd answer the question he'd been asked. They both shared a passion - chemistry - and were explorers of the wild frontier.]

Well. I have a prominent background in chemistry, yes. I build upon my academic ideas and theories in psychiatry to devise, develop and trial new medication for my patients. [Here, his gaze turns hawkish, sizing Walt over something.] My scientific research involves the effects drugs have on mood, sensation, thinking, and behavior.

[A deliberate word, there - drugs. Not medicine or substances.]