Kamala Harris delivered another halting, repetitive speech, this time in Ghana as part of the Biden administration's push to build closer ties with Africa.

By Marisa Taylor and Rachael Levy (Reuters) - Elon Musk's brain implant company Neuralink has approached one of the biggest U.S. neurosurgery centers as a potential clinical trials partner as it prepares to test its devices on humans once regulators allow for it, according to six people familiar with the matter. Neuralink has been developing brain implants since 2016 it hopes will eventually be