From Andrew Bostom in [1] The American Thinker:

Leaving Islam can be hazardous. Apostasy is a capital crime in a number of Islamic countries. But even in elite conservative circles in the United States, there is a tendency to dismiss or at least ignore some important former Muslims who have a lot to teach us about their former faith, as we face an era in which religious war on the West has been declared by radical Islam.

Two years ago, following a modest Washington, DC area reception celebrating the release of [2] Leaving Islam, a compilation of Ibn Warraq's own brilliant essays, and poignant, harrowing testimonials from other ex-Muslim “apostates,” I received a disturbing communication from a former admirer and supporter of Warraq’s work (particularly the seminal [3] Why I Am Not A Muslim) who attended the same event.

This individual dismissed Warraq’s unique and important collection on apostasy in Islam, because Warraq (and by extension, all Muslim apostates) was (were), “…no longer in the game.” It was astonishing to hear such a glib assessment from a conservative intellectual and self-appointed doyen (subsequently, government-appointed) examining Islamic terrorism. The pernicious effect of this mindset—apparently quite pervasive among the lemming-like denizens of the most influential Washington, DC area conservative “think tanks”—was reinforced during Warraq’s dismissive small audience (composed entirely of self-important, self-appointed doyens) at perhaps the pre-eminent Institute of this ilk. Ayaan Hirsi Ali’s rise to prominence as an openly avowed Muslim apostate Parliamentarian in the Netherlands—both before, and most decidedly after the murder of her colleague, Dutch filmmaker Theo Van Gogh—demonstrates that it is completely misguided to dismiss the profound intellectual and sociopolitical contributions courageous apostates can make to both the public discourse, and specific policy initiatives, regarding Islam.

Read it all.