Leading today's tech briefing is news that the US has reversed its stance on intellectual property protection for Covid-19 vaccines. It will now back negotiations proposed by India and South Africa to waive the protections in an effort to boost production of the vaccines worldwide. Also in the briefing, former US President Donald Trump remains banned on Facebook, a look at Wipro's tech moves, India's 5G approvals exclude China, and a Silicon Valley startup increases R&D in India