After the terrorist attacks in Brussels on March 22, people began showing support for the victims by super-imposing the Belgian flag over their Facebook profile picture. But it's easy enough to ...

BOSTON, MA. - OCTOBER 29: Ediz Sozer, 2 years old of Natick holds the Turkish flag during the Turkish Flag Raising Ceremony at Boston City Hall Plaza on October 29, 2019 in Boston, Massachusetts.

Flags across Turkey have been lowered at half-mast ahead of Friday prayers in respect for Hamas’s Ismail Haniyeh who was assassinated in Tehran earlier this week.

My "All Flags" converted picture. Kim Renfro/All Flags In light of Friday's attacks on Paris, Facebook activated a feature allowing people to super-impose the French flag over their profile picture.