Authorities are trying to figure out what led a man with a knife to attack nine people inside a shopping mall before being shot and killed by an off-duty police officer. NBC's Gadi Schwartz reports. watch
A surveillance video shows a man carrying a suitcase near where a suspicious device was found in New York City. WNBC's Jonathan Dienst reports the latest information. watch
WNBC Chief Investigative Reporter and NBC News Contributing Correspondent Jonathan Dienst weighs in on the Manhattan explosion that injured 29 people and where the FBI is in their investigation. watch
NBC's Ron Allen reports on the security preparations as President Obama and other world leaders gather for the United Nations General Assembly in New York City. watch
New York Gov. Andrew Cuomo says the fact that he has called the bombing in Chelsea an act of terror but Mayor Bill De Blasio has not is a "question of semantics." watch
Don Borelli, former special agent-in-charge of the FBI/NYPD terrorism task force, discusses why Mayor Bill De Blasio is not calling the Chelsea explosion an act of terrorism at this time. watch
Former Georgia Congressman and Trump campaign senior advisor Jack Kingston defends Republican nominee Donald Trump’s latest reaction to the Manhattan explosion. watch
Libertarian vice presidential nominee William Weld, a former governor of Massachusetts, discusses the concerns he has about the explosion in New York City. watch
NBC's Hallie Jackson and Kristen Welker report on how presidential candidates Donald Trump and Hillary Clinton reacted to the blast in New York City which injured 29 people. watch
Terrorism analyst Malcolm Nance and Shawn Henry of Crowdstrike discuss the pressure cooker that was removed from the scene near the site of the blast site in New York City. watch
It has been 15 years since the September 11th terrorist attack. Former CIA analyst Nada Bakos discusses the security challenges for the next commander-in-chief of the United States. watch
Republican candidate Donald Trump is leading in Georgia and Arizona while Hillary Clinton is losing ground on Democratic turf. Director of the Center for Politics at the University of Virginia, Larry Sabato, breaks down electoral map. watch
