Is shorting this a no brainer?

I have heard news reports lately that indicate CBA have let through approximately 57,000 transactions of more than $10,000 and it is law that every single transaction above $10,000 needs to be reported to a government agency or department? Apparently every single incident can attract a fine of $18 million which potentially could result in a total fine of approximately $1 trillion dollars?

$1 trillion dollars is approximately 10 times the value of the bank, or approximately double the total national government debt. On top of this CBA shareholders have now launched a class action.

To my way of thinking news cannot get much worse. I would have thought Blind Freddy would be wanting to short CBA stock on the back of all of this? I have never shorted a stock in my life but I am keen to learn. How do I short CBA stock and/or do people think it is a good idea to do so?

Cheers.