"One of the common criticisms (which is also made of voting machines) of breath devices is that the "state-certified" models are updated even after they are certified. The companies that manufacture the machines make tweaks, bug fixes, and even add new features, but the machines are not generally recertified after every single source code change. This means that any given machine could potentially be running non-certified code, code which may or may not have errors.....As a bonus, if a company proves unwilling to turn over the code, the case often gets thrown out without any need to prove that the source code is in fact flawed.
A google driving map and directions tool. Will show you the gasoline used for a one time or recurring trip and the cost, the amount of carbon dioxide emitted, and more. Learn various ways you to lower your carbon footprint and reduce your fuel pump bills
[A special review] panel report said that doctors and other astronauts had raised concerns that the two drunken crew members posed a flight safety risk, but the astronauts were not grounded. The report did not say when the incidents took place, or whether they involved pilots.
Life in the state of nature is solitary, poor, nasty, brutish, and short. - Thomas Hobbes, Leviathan