Other

How do you distinguish between jinn possession and mental illness? When should you seek ruqyah vs. a doctor?

As a default, 90–99% of cases believed to involve jinn are actually natural mental/psychological issues. Common disorders like schizophrenia and depression have natural causes. Some cases are genuinely jinn-related but this is a minority. Ruqyah on yourself is always safe. Only if you notice strange reactions to Quran recitation should you consult an experienced practitioner.

Is it possible to fight an effective war while adhering to Islamic ethics? What does Islam say about weapons of mass destruction?

Islamic war ethics operates on two levels: theory (the ideal — no civilian casualties, no WMDs) and reality (reciprocity when the enemy violates the ideal). The Quranic principle of qisas: if they transgress against you, you may respond in kind. A purely theoretical approach would have led to the annihilation of Muslims throughout history.