[2] His books deal with father and son relationship, as well as topics like globalization, terrorism, identity politics and social atomization.
In 2009, Weitzmann signed a petition in support of film director Roman Polanski, calling for his release after Polanski was arrested in Switzerland in relation to his 1977 sexual abuse case[5] During the summer 2014, Weitzmann wrote for Tablet Magazine "France's Toxic Hate", a series of reporting on the rise of antisemitism in his country that won the Berman Prize for literary Journalism in London in February 2015. in January 2015, at Philip Roth's suggestion, Weitzmann began a book based on those reportings.
But the beginning of the terror wave that same months changed the scope of the initial project to a major work in two languages that consumed four years of his life.
The French version of the book, "Un temps pour Haïr" was published in October 2018 in France.
In the Wall Street Journal, James Kirchick described it as "an excellent and chilling report-cum-memoir about one of the most unsettling phenomena in contemporary Europe” and Roger Cohen in the NYTBR as "an often illuminating intensity as it grapples with an unresolved French and European quandary."