FBI: Bomb found on MLK March way

A backpack found along the way of the Martin Luther King Jr. march in Spokane contained a bomb "capable of inflicting multiple casualties," the FBI said Tuesday, described the case as "domestic terrorism."

The FBI said the Swiss Army-brand backpack was originated about 9:25 a.m. PST on Monday on a bench at the northeast corner of North Washington Street and West Main Avenue in downtown Spokane.

A bomb disposal unit was called in and neutralizes the device with a robot. The FBI said in a statement on Tuesday that "the backpack contained a potentially deadly critical device, likely capable of inflicting multiple casualties."

The FBI has not established an official motive, but Harrill told NBC News "the timing and placement of the backpack (along the March route) is unavoidable."

"At that point, it falls straight in the realm and sphere of domestic terrorism," Harrill told the Associated Press. "Clearly, there was some political or social plan here."

No risks or warnings were issued before the march.

United States and Israel work together against terror

U.S. Homeland Security Secretary Janet Napolitano told Israeli leaders the United States is dedicated to protect both countries against terrorist threats.

Napolitano met Tuesday with Israeli Prime Minister Binyamin Netanyahu, Finance Minister Yuval Steinitz, Foreign Minister Avigdor Lieberman and Public Security Minister Yitzhak Aharonovich in Jerusalem as part of her international trip to Asia and the Middle East, the department said in a release.

"As a steadfast ally to Israel, the United States is committed to continuing our strong partnership to defend both countries against new and evolving terrorist threats," Napolitano said.

"The Department of Homeland Security will continue to work closely with the Israeli government and other nations around the world to strengthen the security of the international aviation system, safe the global supply chain, protect our vital cyber networks and infrastructure, and improve disaster preparedness and response capabilities."

Napolitano also discussed the department's efforts to fight the trafficking of chemicals used to manufacture ad hoc explosive devices and the need for the United States and Israel to work together to protect citizens of both countries from threats of terrorism.