In recent days, however, Baltimore has told a fellow researcher, the scientific journal Nature and the LA Times that – while he had been quoted accurately in the bulletin – he should not have used the phrase “smoking gun” and was uncertain what the feature proved regarding the origins of the virus – natural or otherwise. In an email exchange with the Los Angeles Times, Baltimore conceded he had overstated the case and that he had an open mind on the matter. “[I] should have softened the phrase ‘smoking gun’ because I don’t believe that it proves the origin of the furin cleavage site but it does sound that way. “I believe that the question of whether the sequence was put in naturally or by molecular manipulation is very hard to determine but I wouldn’t rule out either origin.”