Taxi drivers block the road in Whitehall in central London June 11, 2014. While taxi drivers go on strike, Uber has seen an 850 percent increase in sign-ups for the app.
Luke MacGregor/Reuters
Uber sees an 850 percent jump in sign-ups, while cab drivers across Europe protest the taxi-hailing app by going on strike. Experts call the strike against Uber “PR gold” for the app.