In some laboratories, a clear, oily liquid is treated less like a reagent and more like contraband, locked away behind blast doors and handled with rituals that look closer to bomb disposal than bench ...

Add Yahoo as a preferred source to see more of our stories on Google. The EU flag is seen on the stage at the Europe Festival in Hesse. Boris Roessler/dpa The European Union has approved scanners ...

Travelers celebrated the suggestion that American airports might soon ease restrictions on liquids in carry-on bags that create endless hassles at security checkpoints, but more than a third of all ...

The trial has opened in the Polish capital, Warsaw, of five men suspected of involvement in sending parcels containing a liquid high explosive to the UK and Poland on behalf of Russian intelligence.