Jewish men and boys prepare to read prayers in a synagogue in Donetsk, Ukraine, Friday, April 18, 2014. A leaflet distributed in Donetsk, Ukraine calling for all Jews over 16 years old to register as Jews marred the Jewish community's Passover festivities for Monday (Passover eve), replacing them with feelings of concern. Leaders of pro-Russian insurgents in Donetsk where leaflets were distributed flatly denied being behind the distribution, describing it as a fake and provocation. (AP Photo/Alexander Zemlianichenko)