Masked Palestinian youths clash with Israeli security forces in the mostly Arab east Jerusalem neighbourhood of Abu Tor on October 30, 2014.

Israeli police shot dead a Palestinian suspected of having tried to kill a far-right Jewish activist, leading to clashes in East Jerusalem and fears of a new Palestinian uprising.

People stand in front of smoke rising from the Burkina Faso's Parliament, where demonstrators set fire on cars parked in a courtyard of the Parliament, on October 30, 2014 in Ouagadougou, as they protest at plans to change the constitution to allow President Blaise Compaore to extend his 27-year rule.

Protesters were angry at plans to allow Burkina Faso's President Blaise Compaore to extend his 27-year-rule.

NEW YORK, NY - OCTOBER 20: Ursula Anderman (right) teaches a New York pedestrian how to use Apple Pay, as part of a Visa/Chase promotion, on October 20, 2014 in New York, NY.

Several analysts have estimated that mobile payments will be a $1 trillion global industry by 2017.

Bloomberg/Bloomberg via Getty Images

JDI Dating created computer-generated profiles to communicate with customers.

Health workers wearing Personal Protective Equipments (PPE) stand at an Ebola treatment center run by the non-governmental international organization Medecins Sans Frontieres (Doctors without Borders -- MSF) in Monrovia, Liberia, on October 27, 2014.

Health agency notes decline in the spread of Ebola in Liberia, the country hardest hit in the outbreak.

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