Sunday, 10 Jan 2021 Zulkarnaen, a senior leader of the al-Qaeda-linked Jemaah Islamiah, who had been on the run for his alleged role in the 2002 Bali bombings, is escorted by police upon arrival at Jakarta’s Soekarno-Hatta International Airport on Dec 16,2020. — AP THE coronavirus pandemic has, over the past year, forced countries to impose lockdowns and close their borders, leading to a drop in public events and gatherings as well as a sharp slowdown in travel. These have meant that, for the most part, extremist terrorism has dropped off the headlines and seen a dip in impact. But the threat has not receded, as incidents like the beheading of schoolteacher Samuel Paty in France and the recent arrests of terror operatives and discovery of new training sites in Indonesia show.