Il Foglio – Arturo Varvelli Arturo Varvelli @arturo_varvelli on Twitter Head, ECFR RomeSenior Policy Fellow 18 April 2020 The exceptionality of this moment has generated a ‘call to arms’ effect, a mechanism of self-defence that serves to dampen the chaos. But this effect has been lacking in the United States. Arturo Varvelli on the role of leaders in times of crisis. Find out more