+ insider trading isn't illegal in commodities -- is that the issue here?

This appears to be a case of front running, which is illegal in the commodities market.

Why? Its like banks never crossed the line to get more profits in the recent history?

This is sarcasm. Its a direct quote from the movie Casablanca (one of the all time classics).

When ordered to shut down a bar, the police captain uses the excuse that illegal gambling is taking place in the bar. But the Captain is a frequent patron of the illicit gambling.

The exact quote is roughly

"Shocked, I say. Shocked to find that gambling has been going on in this location."

"Your winnings sir."

"Thank you."

Ow, you got me. I am ashamed to admit I missed most american classic movies. Thank you for the reference, its on my list now.

"The exact quote is roughly"

Um..?

It was sarcasm, of the drier variety.

And, also, of the well known variety.