Unintentional terrorist?

The Sydney Morning Herald has reported that:

Benbrika, 48, of Dallas, was found guilty of intentionally directing the activities of a terrorist organisation and of being a member of a terrorist organisation.

What I'm wondering is, can you actually

• unintentionally direct the activities of a terrorist organisation; or
• unintentionally be a member of a terrorist organisation?

Can you actually unintentionally direct someone to kill hundreds of innocent people? What about unintentionally joining an organisation that gives members weapons and military training, with the sole aim of terrorising people?

Can you actually be part of something that devastating and not know that you actually are?

Or maybe I'm just thinking too much and reading too much into things...

Full article here.