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US city sirens ‘set off by hacker’

A hacker has been blamed for setting off more than 150 warning sirens in the US city of Dallas over the weekend. The sirens are usually used to warn of extreme weather events such as tornadoes. “All 156 sirens in the city were activated…

Twitter sues US over anti-Trump account

Twitter is suing the US government after it demanded it reveal the identity of an anti-Trump account. The @ALT_USCIS profile was an anonymous profile account criticising President Trump’s immigration policy. The account claimed it was being…

Google advertising row spreads to US brands

At least four major US firms have pulled millions of dollars in advertising from Google’s platform amid rows over extremist content. The Times reported that telecoms firms AT&T and Verizon, as well as car rental company Enterprise and…