US President Joe Biden hit the ground running on Wednesday as he signed a series of orders reversing many controversial decisions of his predecessor Donald Trump. Top of the list is Biden's decision to rejoin the Paris climate accord that Trump junked. He also signed an order making masks mandatory in all federal buildings.
The orders signed by the new President included keeping the United States in the World Health Organization, ending the ban on entries from mostly Muslim-majority countries, bolstering environmental protections and strengthening the fight against Covid-19. Also among the directives was a halt to construction of the wall on the US-Mexico border.