Rio 2016: Drone shows off progress at Olympic park

Rio de Janeiros City Hall published a video to show off the 2016 Olympic Park with 170 days to go before the opening ceremony. A drone flew over the city, capturing the various venues which will be used during the Olympic Games. Feb 18, 2016

Zero Days: Director says US government secrecy trend appalling

The US government developed a cyberwar capacity to cripple Irans military defences, power plants and other infrastructure in case diplomatic attempts to curtail its nuclear programme failed, a documentary film shown in Berlin says. The film Zero Days by veteran documentary maker Alex Gibney, being shown in competition for the Berlin International Film Festivals top Golden Bear prize, says the USs National Security Agency (NSA) developed a cyberwar programme dubbed Nitro Zeus that it hoped would bring Iran to its knees in the event of hostilities. Feb 18, 2016

Zika virus: FDA recommends ban on blood collections from affected areas

The US Food and Drug Administration (FDA) has recommended that blood no longer be collected from regions where the Zika virus is circulating, and that blood needed for transfusions be obtained from areas of the United States without active transmission. The agency said blood banks can continue collecting and preparing platelets and plasma if an FDA-approved pathogen-reduction technology is used. Current pathogen-reduction technology is not approved to treat whole red blood. Feb 17, 2016