sentences:  In late 2013, activists in the San Francisco Bay Area began protesting the use of shuttle buses by Google and other tech companies, viewing them as symbols of gentrification and displacement in a city where the rapid growth of the tech sector has driven up housing prices.On August 15, 2007 Google discontinued its Download-to-own/Download-to-rent (DTO/DTR) program.Some videos previously purchased for ownership under that program were no longer viewable when the embedded Digital Rights Management (DRM) licenses were revoked.