Investigative journalist Richard Trainor will be promoting his new book, “Paradise Lost?: High-Speed Trains Get Waylaid, Shady Politicians get Billions and Taxpayers Get the Shaft!” at Harlow’s Wednesday. The book opens with a sordid account of Trainor’s lifestyle and the pitfalls of being an investigative journalist. That lifestyle included homelessness, a politician threatening to throw him off the Bay Bridge if he didn’t back off of a story, and being tossed in jail as he relentlessly pursued shady politicians and their scams. “Paradise Lost?” is an extraordinary account of what politicians call ‘pump and dump’ schemes. The two main examples in the book elaborate on high-speed rail p