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Are Star Wars’ Stormtroopers the biggest secret army on Earth? Ruth Alexander investigates for More Or Less , and looks at some of the other numbers behind one of the most successful movie franchises in history.
³ÉÈË¿ìÊÖ Trending reports on a viral video showing a mother in China punishing her daughter for allegedly getting bad grades. She dangles her over a fast flowing river while shouting at her. When does discipline cross the line? Why are some Chinese parents so tough on their children? Do ‘tiger mums’ practise the best parenting? Also, an agony aunt who’s using Instagram to dish out relationship advice to her followers in Nigeria explains why she does it this way.

And in the Why Factor, Mike Williams looks at why we make lists – from shopping lists to wish lists - and what they reveal about our efforts to impose order on a confusing world.

(Image: Stormtroopers at Star Wars: The Force Awakens premiere. Credit: PA Wire)