The terror suspect known as "Jihad Jane" pleaded not guilty in a Philadelphia court, Thursday, to four charges stemming from an overseas terrorist plot.

Charges against Colleen LaRose include conspiring with jihadists and pledging to murder in the name of a Muslim holy war.

The suburban housewife has been in prison for several months after being indicted for plotting to help Islamic terrorists and conspiring to kill a Swedish artist who depicted the Islamic prophet Muhammad as a dog.

Authorities have also linked the 46-year-old to terror suspects arrested in Ireland last week.

Although it's rare for an American woman to be linked to a global terror scheme, LaRose has been called the new face of terror.

"I think we now are seeing the successful recruitment in the United States of non-Muslim people initially to get involved in jihad," former FBI Special Agent Brad Garrett said.

Still, some terror experts wonder if LaRose ever posed any serious terror threat.

"People in distress blame the government, and now blaming the government means taking the side of these Muslim terrorists," said Ian Lustick, a University of Pennsylvania political science professor. "They're about as jihadist as you and me, but they're a lot less happy."

Meanwhile, Fox News reports LaRose admitted to her role in the plot to the FBI. Her lawyers have not yet commented on the charges.