US President Donald Trump has honoured six technology and science leaders with the National Medal of Science and the National Medal of Technology and Innovation, calling them national treasures ushering in a golden age for America. The awardees include Tesla CEO Elon Musk, Microsoft CEO Satya Nadella, Nvidia CEO Jensen Huang and AMD’s Lisa Su. The ceremony comes amid the Trump administration’s suspension of the PERM programme, sparking debate over the role of foreign-born talent in driving American innovation and technological leadership.