Bill Gates, on China trip, lauds free trade - and futuristic toilets | Reuters.com
A man walks past a toilet sign at the Reinvented Toilet Expo showcasing sewerless sanitation technology in Beijing, China November 6, 2018. REUTERS/Thomas Peter Stock Photo - Alamy
Bill Gates Talks Toilet Technology | Industrial Equipment News
Sanitation showcase - YouTube
Don't hold your nose: the 400-year-old flush toilet is overdue for an upgrade as hundreds of millions of people go without it | South China Morning Post