The FBI and the US Department of Homeland Security warned in a joint public statement that the first anniversary of the deadly terrorist attack in Israel, along with escalating tensions in the Middle East, could serve as motivations for acts of violence by extremists, reports CNN Law enforcement agencies across the country have ramped up patrols around Jewish and Muslim sites. The New York Police Department will increase its patrols on Monday, according to a source within law enforcement who spoke to CNN. This heightened security is expected to last for the next two weeks. The NYPD will also c…