Prosecutors seek criminal charges in London Whale fiasco.

The article reports on an investigation into the trading scandal known as London Whale, involving banking and financial services company JPMorgan Chase. It notes that investigators have made great progress in their efforts to bring criminal charges against various employees of the bank. They include Javier Martin-Artajo, a manager who oversaw the trading strategy from the bank's London, England offices, trader Bruno Iksil, executive Achilles Macris, and low-level trader, Julien Grout.