April 2015 IssueSecurityKiller ideas require a moment of privacyBy Sarah LewisCultureFive planned urban pools set to make a splashBy Kathryn NaveBusinessLet's be intelligent about the artificial intelligence uprisingBy George ZarkadakisGearHow to make an electrically conducting rubber bandBy Sophia EpsteinScienceHarmful super-blooms on the rise in world's oceansBy Emma BryceBusinessAslaug Magnúsdóttir uses 3D tools to customise designer clothesBy Madhumita Venkataramanan