Trump thwarts Qualcomm deal over 'national security' concerns

US president Donald Trump has blocked a planned takeover of chip maker Qualcomm by rival Broadcom on the grounds of national security. His order cited "credible evidence" that the proposed $140bn (£100bn) deal "threatens to impair the national security of the US", reports the BBC. There were reportedly concerns that the takeover could have led to China pulling ahead in the development of 5G wireless technology. A takeover of Qualcomm by Broadcom would have created the world's third-l...