Laura Poitras has sued the US for persistent harassment when she entered the US.

Senator Warren: government must fund research into medical benefits of marijuana, not just research into problems it causes.

The research into problems is useful nonetheless. It shows, for instance, that driving under the influence of marijuana is not a significant social problem.

What the UK's proposed reforms on mass surveillance do and don't achieve.

A proposed anonymizing wi-fi extender project has mysteriously shut down, leading to suspicion that the developers were threatened by someone.

The reasons that Greenland's ice is melting include the fact that heating causes more rain. When the rain goes under the ice, it helps the ice slide into the sea.

Theoretical models of how fast the ice will melt tend to be underestimates because the fastest melting mode may not be obvious, and if you miss it, you underestimate.