'Charlie' Rallies Continue amid Global Jihad Threat

France has ordered 10,000 troops into the streets to protect the nation after last week's terror rampage in Paris.

Fears are spreading that terrorists could unleash new attacks, not only in France but in America, too.

Just days after Muslim terrorists killed 17 people in Paris, ISIS is calling on jihadists in the West to strike again.

In a message posted on Twitter, the terror group urges radical Muslims to "strike the soldiers... strike their police... security and intelligence members."

"That environment is still one that gives me great concern, especially -- especially those we identify as lone wolves," U.S. Attorney General Eric Hold told ABC’s "This Week."

Sen. Richard Burr, R-Va., chairman of the Senate Intelligence Committee, called it a war on civilization and said events like the Charlie Hebdo massacre could become weekly occurrences.

"The thing that worries me the most right now is the buzz on social media. Whether it comes from a specific brute like ISIS or whether it's just on the chat rooms, the target is to just go out and kill law enforcement and other officials," he said.

Sen. Diane Feinstein, D-Calif., went further, stating she thinks terrorist sleeper cells are hiding in Europe and the United States, waiting to be activated and carry out more attacks like the ones in France last week.

The new threat comes as more than a million people took to the streets in Paris on Sunday, and millions more in other cities in a show of unity and defiance against terrorism.

The rally cry "I Am Charlie" rang out, honoring those killed in the attacks on the satirical newspaper Charlie Hebdo and a kosher grocery.

French President Francois Hollande led world leaders, arm-in-arm. The crowd was massive – a size not seen since the liberation of Paris in World War II.

"We are not afraid. We are not afraid," one demonstrator said.

"We have to be here in the memory of these people, innocent people," another protester said.

Although Holder was in Paris, he did not attend the unity march. The White House was slammed for not having a single high ranking official at the event.

The Obama administration did announce it will hold a global Summit on Countering Violent Extremism next month. But the announcement failed to mention anything about radical Islam, which was the motivation behind the Paris attacks.