Increasingly stretched, could home testing kits like this one help bear the burden . And, our twitter question of the day are you fed up with fake news . Should Tech Companies be doing more to keep your newsfeed fa ke news free . That is a tongue twister just use the hashtag bbcbizlive. Hello and welcome. We start with the growing backlash against social Media Companies over their role in the spread of fake news. Today executives from Facebook Youtube which is owned by google and twitter will be questioned about the issue by british members of parliament at a public hearing in washington. Critics have given the tech giants an unflattering new acronym baadd. As in big, anti competitive, addictive and destructive to democracy. Last month, facebook reacted to criticism by refocusing on updates from friends and family, rather than news publishers and brands. It says that has led to people spending 50 million fewer hours a day on the network a fall of around 5 . Facebook has admitted 146 mi