Les Roberts is an Epidemiologist and Professor Emeritus at the Columbia University Mailman School of Public Health. He has taken part in the field measurement of mortality in crises including Rwanda 1994, more than 30 health Zones in the Democratic Repoublic of Congo 1999-2002, Iraq 2004, Zimbabwe 2007, the Central African Repbulic 2009, 2018, and 2014. In the months since, the world has been taken aback by the number of deaths reported out of Gaza: 1,200 in a day, Oct. 7