cracking down on the use of third-partpp to boost a user's popularity with fake likes, follows andco mments. the company said that violates its policies. they say if users continue to violate the rules, it could limit their access to certain features. >> and ford has filed a patent application for a process to eliminate that new car smell. it's the latest attempt to accommodate consumer tte from all around the world. consumers in china say they hate the new car sml, ranking the odors ahead ofe engin performance or safety as why not to buy a new car. the system includes system software and air quality senso and only works when prited to a af -- >> but i like the new car smell. >>> we put shopping to the test. for this shopping test, we're searching for the fastest way to check out. >> if you have 20 items or less, using self-checkout is probably your best feature. >> reporter: we headed to self-checkout and started scanning. but an issue with one of the bar codes required help from the attendant. >> reporter: we're still under three minutes for self-checkout for all of the things on our list