TechnologyDavid and Goliath: What do we do about surveillance? From spyware designed to catch students misbehaving to police tracking rioters by phone, we are spied on as never before, reveals a book by Bruce Schneier CultureLab
EnvironmentFeathered apes who say thanks with shiny trinkets The eight-year-old girl showered with gifts by crows is not the only recipient of avian generosity, says crow and cognition expert Nicola ClaytonComment