From 325 metres away, your eyes can probably distinguish a person’s head from their body – and not much else. But a new laser-based device ... technology, says Vivek Goyal at Boston University ...

Vivek Ramaswamy spoke to a reporter at the Baird Center at the Republican National Convention in Milwaukee on Monday. (Gabriella Demczuk for WSJ) Vivek Ramaswamy, the biotech company founder who ...