Appeals court considering warrantless cellphone tracking

(AP)—Now that the cellphone in your pocket can be used to track your movements, federal appeals judges in Atlanta are considering whether investigators must get a search warrant from a judge to obtain cellphone tower tracking ...

Feb 24, 2015
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Micro-5: Gut reactions in space

Our guts literally teem with beneficial bacteria. But not all bacteria are harmless. Disease-causing bacteria, known as pathogens, can infect our intestines, causing illness or even death. Bacterial pathogens ...

Feb 24, 2015
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