We start in China, where a thousand dead ducks have been found floating in a river in Sichuan province. This comes just a couple of weeks after 16,000 dead pigs were pulled out of a river near Shanghai.
David McKenzie is in Beijing. Erin Burnett asked him what killed these ducks.
And in Pakistan where, in an attack similar to the one on teenage activist Malala Yousufzai, a female teacher was gunned down on her way to school.
Her son, who survived the attack, saw the whole thing. Nic Robertson is in Islamabad.
Burnett asked him what the teacher's son says about the attack.