Agreed with Ursa, welcome to PoE.
Perhaps you might want peruse the archives... Off the top of my head: Bud Dwyer, the wedding party collapse, the above mentioned "Great White fire"... Or, just wash it down with a cat video and move on.
This lets me know that the initial reaction to Russians getting attacked is the survivors remaining calm, looking for other survivors and assessing the damage. Clearly this happens a lot there.
I hope I never ever see this in person. These bombings can be such horribly violent things, so much worse than shootings or stabbings or anything like that... people ripped apart. Terrible terrible stuff.