Stimulus
Text extract (adapted): "The killing of George Floyd in Minneapolis in May 2020 turned a network founded in 2013 into the largest protest wave in recent memory. Within weeks, marches under the Black Lives Matter banner appeared in the United Kingdom, France, Australia and dozens of other countries, each attaching the slogan to its own history of policing and race. Supporters argue the movement changed what societies are willing to discuss. Critics counter that attention faded quickly and that durable change still depends on statutes, budgets and courts, which move at the pace of domestic politics rather than street mobilisation."
Source: Adapted from international press commentary on the 2020 protest wave.
(a) Using the stimulus, three things it suggests about the Black Lives Matter protest wave of 2020.
(b) one political issue raised by the transnational spread of the Black Lives Matter movement.