Russia and China challenged the United States' global leadership in United Nations speeches peppered with bare-knuckled criticism of the Trump administration's hostility toward Iran, its "military hysteria" over North Korea, and its approach to the rest of the world.

Facebook founder Mark Zuckerberg says his company will share 3,000 Russia-linked political adverts with US investigators.

As deaths mount in America’s opioid crisis, communities on the front lines face a hidden toll: the financial cost.

Their appearance at the event, set to take place Sept. 24-27, comes after violent protests caused Coulter and Yiannopoulos' previous planned speeches on campus to be cancelled.

The Pirate Bay briefly put code on some of its web pages that used visitors' machines to mine a virtual currency.

A new rule on Sina Weibo, China's leading microblog service, caused a stir among its users and put a spotlight on internet platforms' competition for user-generated content.

British Prime Minister Theresa May has rebuked US President Donald Trump for suggesting suspects in Friday's London train blast were known to police.

The world's second largest economy is on the fast track to ditching cash.

By 2030, the target date for the United Nation's Sustainable Development Goals, the number of youth aged 15 to 24 years will reach nearly 1.3 billion globally, up 7 percent from 2015.

The US has proposed a range of new United Nations sanctions against North Korea, including an oil ban and a freeze on leader Kim Jong-un's assets.