U.K. To Investigate Nvidia-Arm Deal Over National Security Concerns The U.K. competition watchdog’s phase one report is due at the end of July, and it is expected to shed light on whether there are any competition, national security or jurisdiction issues. From there, the U.K. digital secretary can decide to clear the acquisition, clear it with certain conditions or call for a phase two investigation. By Dylan Martin April 19, 2021, 10:15 AM EDT The United Kingdom is set to investigate national security concerns surrounding Nvidia’s pending $40 billion acquisition of British chip designer Arm after saying it will intervene in the deal.