Things I learned lately - 25 May

• At Expo Milano in 2015, the USA pavilion will focus on food trucks.
• Subway restaurants have around 26,000 stores in the US, almost double the number of McDonald's. But they think there's room for 8,000 more.
• One word why regular computer users need regular (and a few archived) backups of irreplaceable files - ransomware.
• Up to 400 trains pass through the chunnel each day, carrying an average of 50,000 passengers, 6,000 cars, 180 buses and 54,000 tonnes of freight.
• DuckDuckGo is a search site that doesn't track your clicks across the Web. So if the government were to come knocking on DuckDuckGo's doors seeking information, they would have no way to tie that information to individual users.
• Chinese police (as in - from China) will be deployed to the streets of Paris this summer to help protect the growing number of wealthy Chinese tourists who visit Paris but have been the target of mass muggings due to the large quantities of cash and purchased items they carry around.
• 7 out of the top 20 highest rated laptops on Amazon (US) and 5 out of the top 20 most popular laptops sold on Amazon are Chromebooks (running Google Chrome OS).
• Two separate teams of scientists have announced that blood transfusions from young individuals fix older peoples' hearts and cure aging brains. So, obviously, vampires are onto something.
• You'd have to earn $340,000 per year to be part of the top 1%.
• Doritos were born of recycling stale tortilla chips that were being thrown at Disneyland in the 1950s. They were fried and sprinkled with cheese powder.