Berkshire Hathatway takes a $1.1bn stake in US tech firm - Investors go for gold - British artist sells copies of masterpieces - Artisan coffee roasters’ supply problems - Portugal Rolls Back Austerity
Clever entrepreneurs are now bottling and selling clean air to offset smog in big cities, as a souvenir, or to hospitals. Many have been astounded by their own success.
Ride-hailing company Uber is weighing options for its costly US car-leasing subsidiary. Media reports said the firm might also sell the unit completely, with losses per car in use having piled up in recent years.
President Trump struck a chord with his core supporters when he aimed to shorten the US trade deficits with the world's powers. After a tough week, Trump was boosted by good news on the economic front.
Marcus Hutchins is credited for single-handedly stopping the WannaCry cyber attack in May, which affected computers in over 150 countries. He was detained by law enforcers before returning to London.
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