Ominous Views of Japan's New Concrete Seawalls Ifeadi C. 01:32 Feed: All Latest, Zero Tech Blog Can these 41-foot-high walls protect the country from another tsunami? via Zero Tech Blog Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsHow to Use Microsoft Defender on All Your DevicesDevialet’s Dione Soundbar Is Mighty but FlawedYoung Thug and What Happens When Prosecutors Use Social MediaDemocracy Is Asking Too Much of Its DataYou Need to Update Windows and Chrome Right NowAstronomers Radically Reimagine the Making of the Planets