By Angus Berwick (Reuters) -FTX’s former top lawyer Daniel Friedberg has cooperated with U.S. prosecutors as they investigate the crypto firm’s collapse, a source familiar with the matter said, adding pressure on founder Sam Bankman-Fried who was arrested on criminal fraud charges last month. Several other former FTX executives have also engaged counsel to discuss their cooperation with prosecutors, two separate sources said. Friedberg gave details about FTX in a Nov. 22 meeting with two dozen investigators, the person said. The meeting, held at the U.S. Attorney for the Southern District of N…