There is an urgent crisis for Christians in a great sweep of countries across the middle of the earth. None can feel safe in many countries and especially not in Syria, Iraq, Egypt, and Pakistan (also here). The terrorist rampage in the Westgate Mall in Kenya may have targeted 'non-Muslims' rather than Christians specifically, but that grievous action will ripple through the extensive Christian community in that country.
Violence is not intrinsic to the way of life lived by the vast majority of Muslims, but violence, both against fellow Muslims and against Christians, is intrinsic to the terrorism which seeks to impose one or more forms of a rigorously pure Islam.
Readers of Western blogs such as this one will mostly live far from the threat of terror. We can discuss our issues in freedom and peace. Meanwhile our brothers and sisters in Christ face issues of a different kind and lack our freedom and peace with which to contemplate resolution. Stay and face death by terrorism? Leave for a safer country and concomitantly shrink the church of their homeland?
If we take ecclesiology seriously then the massacres of Christians in Syria and the bombing of Christians in Peshawar are the amputations of members of the one body of Christ. The crisis for Christians in countries threatened by terrorism is a crisis for global Christianity.