The idea that HSBC executives are guilty of... violating the article author's feelings about how anti-drug law should work, or something... is why you don't get your financial news from an unbalanced liar in Rolling Stone magazine. But even Taibbi can't seem to identify what precisely the executives are guilty of, an important prerequisite to prosecution in a nation governed by the rule of law.
As for the regulations, they are the reason why you can't open an account or move large amounts of money without giving the bank enough information to know a substantial portion of your entire financial history, and giving the bank permission to freeze your accounts approximately whenever they feel like it or whenever the government demands. You can think this is a good thing or a bad thing, but since you, Mr. Lawyer, complain about you having to burden yourself with the responsibility of knowing your client, surely you feel it's unfair that banks have to do the same thing? Not to mention the privacy implications.