Transparent public toilets with high end technology come to Tokyo

Parks in Japan's Tokyo have transparent toilets now. These toilets have transparent walls and one can see whatever is happening inside! Actually, the facility will help a toilet goer to check if the toilet is clean or not. If he or she finds it hygenic then the person may step in, lock it and use the toilet. As soon as one person locks the toilet, the walls become opaque
Take a look