Just as cell culture was kicking off with Hela a huge "bomb" was dropped on it all. Stanley Gartler announced in front of many cell culture scientists that he had discovered that Hela had contaminated many popular cell lines and cell banks. This means that any research done with those cells lines is may be illegitimate and could have been a waste of millions of dollars. Many scientists refused to believe Gartler's discovery and continued right on with their work. Though, some realized the importance of knowing of a cell line was contaminated or not and developed processes to do so.