Two commonly used kinds of nanoparticles, zinc oxide and silver, can damage DNA if they get into human cells.

This highlights the danger that a material which is safe when used in larger units may be dangerous in the form of small particles.

US citizens: sign up in support of Harvard faculty calling for divestment from fossil fuel companies.

3 new puns in French

Working people should not be condemned to being "hard-working" in service of the rich. Especially not when there is no work available.

The Pharma company Roche swindled governments out of billions by suggesting that Tamiflu was effective against flu symptoms while concealing that experiments had shown the contrary.

We should not allow these companies to have anything to do with such experiments. The government should tax them and spend the money on the experiments.