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Under pressure, social media giants acknowledge meddling

WASHINGTON — In three exhaustive hearings this week, executives from Facebook, Twitter and Google acknowledged that their platforms were used by Russia to try and create division over such disparate issues as immigration, gun control and politics. House investigators released a trove of Facebook and Twitter ads that showed just how extraordinary the cyber intrusion was.

Iridium to rely on used SpaceX boosters for next 2 launches

LOS ANGELES — Iridium Communications says its next two launches of new-generation satellites will use refurbished SpaceX Falcon 9 first-stage boosters that have flown previously.

The announcement Thursday is another step in SpaceX’s effort to reduce launch costs.

The company has launched a few used boosters and is trying to expand acceptance of reusability across the industry.

Delivery by drone: Switzerland tests it in populated areas

ZURICH — Drones will help deliver toothbrushes, deodorant and smartphones to Swiss homes this fall as part of a pilot project, the first of its kind over a densely populated area.

The drones will take items from a distribution centre in the Zurich area and transport them 8 to 16 kilometres (5 to 10 miles) to awaiting delivery vans. The van drivers then bring the packages to homes.