ET gone home?

One petition to the US government recently boldly asserted that more than 50 percent of the American people believe there is an extraterrestrial presence and more than 80 percent believe the government is not telling the truth about this phenomenon. Sadly for the conspiracy theorists the White House has officially responded in the negative. According to the White House Office dealing with Science & Technology policy: "The US government has no evidence that any life exists outside our planet, or that an extraterrestrial presence has contacted or engaged any member of the human race. In addition, there is no credible information to suggest that any evidence is being hidden from the public's eye". But they do note that doesn't mean the subject of life outside our planet isn't being discussed or explored. In fact, there are a number of projects working toward the goal of understanding if life can or does exist off Earth. Are they implying that Star Trek is untrue?