The intentions for this experiment are probably to help increase engagement. One could even argue that for content Twitter deems to be "breaking news," putting important tweets from the accounts a person's Twitter friends follow into that person's main timeline could be valuable.

When memorable encounters happen underwater, how do you capture them? An expert photographer heads to the beaches of Malaysia for a lesson. BBC's Travel Show brings you the latest insider travel news, a wealth of destinations, amazing experiences and features and practical hints.

Covering more than 10sqkm, Makli is one of the world’s largest necropolises, acting as the final resting place of more than half a million people, including kings, queens, saints and scholars. And even though the 14th-century site was inscribed as a Unesco World Heritage Site in 1981 – one of just six in Pakistan

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