New forms of fentanyl are created every day. For law enforcement, that poses a challenge: How do you identify a chemical you've never seen before? Researchers at Lawrence Livermore National Laboratory ...

In mathematics, proofs can be written down and shared. In cryptography, when people are trying to avoid revealing their ...

Save this article to read it later. Find this story in your account’s ‘Saved for Later’ section. Now, due in large part to Team Trump’s ineptitude, the Epstein files have become the biggest ongoing ...