Last Thursday, our beloved family dog, Katie, died at the age of 12. She was a gentle giant who respectfully deferred even to any mite-size puppy with a prior claim to a bone. Katie might have won the Nobel Peace Prize if not for her weakness for squirrels.

I mourned Katie’s passing on social media and received a torrent of touching condolences, easing my ache at the loss of a member of the family. Yet on the same day that Katie died, I published a column calling for greater international efforts to end Syria’s suffering and civil war, which has claimed perhaps 470,000 lives so far. That column led to a different torrent of comments, many laced with a harsh indifference: Why should we help them?

These mingled on my Twitter feed: heartfelt sympathy for an American dog who expired of old age, and what felt to me like callousness toward millions of Syrian children facing starvation or bombing. If only, I thought, we valued kids in Aleppo as much as we did our terriers!

For five years the world has been largely paralyzed as President Bashar al-Assad has massacred his people, nurturing in turn the rise of ISIS and what the U.S. government calls genocide by ISIS. That’s why I argued in my column a week ago that President Obama’s passivity on Syria was his worst mistake, a shadow over his legacy.