HAKA (Reuters) - A blogger was hacked to death by machete-wielding attackers in Bangladesh on Tuesday, the third killing of a critic of religious extremism in the Muslim-majority nation in less than three months. Ananta Bijoy Das, a blogger who advocated secularism, was attacked by four masked assailants in the northeastern district of Sylhet on Tuesday morning, senior police official Mohammad Rahamatullah told Reuters. Rahamatullah said Das was a 33-year-old banker. He was also editor of science magazine "Jukti", which means "logic", and on the advisory board of "Mukto Mona" (Free Mind), a website propagating rationalism and opposing fundamentalism that...