Sheryl Sandberg, chief operating officer of Facebook. Photograph: Andrew Harrer/Bloomberg

After years of criticism, Facebook said on Tuesday that it would stop allowing advertisers in key categories to show their message only to people of a(...)

Donald Trump signs a veto of the measure to end his emergency declaration to get funds for a border wall, with sheriffs and attorney general William Barr (centre) and department of homeland security secretary Kirstjen Nielsen (right of Barr) in the White House. Photograph: Jonathan Ernst/Reuters

US president Donald Trump has issued the first veto of his administration, blocking a measure that opposed his use of a national emergency to circumve(...)

As a young lawmaker defining himself as a presidential candidate, Barack Obama visited a centre for scholars in October 2007 to give a speech on terro(...)