Bonya Ahmed: Fighting machetes with pens

Wiki:

Avijit Roy (Bengali: অভিজিৎ রায়; 12 September 1972 – 26 February 2015) was a Bangladeshi American online activist, writer, blogger known for pioneering Bengali freethinkers’ weblog-forum, Mukto-Mona. Roy was a prominent advocate of free expression in Bangladesh, coordinating international protests against government censorship and imprisonment of bloggers. He founded Mukto-Mona, an Internet community for freethinkers, rationalists, skeptics, atheists, and humanists of mainly Bengali and other South Asian descent. He was hacked to death by machete-wielding assailants in Dhaka, Bangladesh, on 26 February 2015; Islamic militant organization Ansarullah Bangla Team claimed responsibility for the attack.

Avijit Roy's wife, Bangladeshi American Rafida Bonya Ahmed gave a talk to the British Humanist Association, "Fighting Machetes with Pens". Here is the 2015 Voltaire Lecture by Rafida Bonya Ahmed hosted by the British Humanist Association. It is a must-listen.  If you can't watch, then a full transcript is available on the British Humanist organization's website.