On the 12th of Tishrei, 5702 (October 3, 1941), a rumor spread that the Nazis were planning to round up and murder widowed women, whose husbands had already been killed by the Germans. These women sought to marry quickly in order to avoid this threat. However, there was no Mikveh in the Kovno ghetto, and the question arose as to whether being Mesader Kiddushin for these couples would be considered Lifnei Iver, placing a stumbling block that would result in transgression. read more