"We didn't care who was Jewish and who was Muslim. We were Moroccans—and human."
No one claimed responsibility for the calls on Wednesday nor nine days ago, and the Federal Bureau of Investigation (FBI) has not named any suspects nor described a likely motive.
Memories of the 6 million murdered by the Nazis informs the debate about Iran's nuclear ambitions.
The number of anti-Semitic incidents in Britain had risen to a record level last year, prompting an inquiry.