Ayaan Hirsi Ali is not the only critic of Islam who lives with round-the-clock protection. But surely none wears their endangered status with greater style. The Dutch Somali human-rights campaigner looks like a fashion model and talks like a public intellectual. Tall and slender with rod-straight posture and a schoolgirl smile, she is a thinker of stunning clarity, able to express ideas in her third language with a precision that very few could achieve in their first. This combination of elegance and eloquence would be impressive in any circumstances. Under threat of death, it is nothing short of incredible.