"I wouldn't say that the videos changed much as far as [ACN's priorities] go; our commitment to the Christian community there was as high before and after;" Clancy said.
"And that was because we saw the existential threat to the Christian communities by what was going on, by the violence, by the terrorism...The videos strengthened our resolve, I guess, to say we're not going to let this happen."
Last December, a mass grave of 34 Ethiopian Christians was unearthed. That grave is believed to contain the bodies of Christians killed by IS forces in a propaganda video posted on social media in April 2015, two months after the first video was released.
That video, similar to the first one, appeared to show the Islamic State fighters shooting and beheading the Ethiopian Christians, who were all wearing orange jumpsuits, on a beach.
Clancy told CNA that ancient Christian communities in the Middle East remain at risk of disappearing. In Syria alone hundreds of thousands of Christians have been driven from their homes in places like Nineveh, Damascus, Homs, and Aleppo.
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"We've been able to support $55 million in aid over the years in Iraq and probably about $40 million in Syria in different programs to help keep the Christian communities alive," Clancy said.
"Unfortunately though, even with all of those efforts, there's been a great decline in the number of Christians. Iraq is down to about 20% of its Christian population as compared to 2000. And Syria's down probably something like 40% since that time too."
Clancy highlighted the continued dangers faced by Christians all over the region and the world, and noted the moral imperative on the international community to remember and support them.