London's Mayor wants Uber drivers to pass a test similar to the "Knowledge" before they can start working in the capital. In a State of London debate, Boris Johnson said it wasn't fair that taxi drivers spend years preparing for the famous exam, which tests their geographic knowledge, while minicab drivers are able to take to the streets straight away. The MP also said he disapproves of "the brash attitudes" of large American internet companies and wants to do more to champion London's black cab industry. As such, his proposed test for minicabs would be easier than the Knowledge to ensure regular cabbies "retain their distinctiveness." It would, however, make certain that Uber drivers "understand more than the difference between left and right," according to the Mayor.