Killing Civilians - Us Vs. Them

We all are upset (and rightly so) about the Manchester suicide bomber who just killed several civilians, including children.

However, the US kills MANY civilians, including children, nearly every day. Here is but one example:

http://theantimedia.org/syria-us-airstrikes-civilians-children/

Why aren't we as upset about THAT?

I firmly believe that more bombing is not a justified response from either side, for any reason. If we want the bombing to stop, EVERYONE will have to stop.

And by the way, no Christian should have been bombing anyone in the first place:

Ye have heard that it hath been said, Thou shalt love thy neighbour, and hate thine enemy.
But I say unto you, Love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you, and persecute you;
That ye may be the children of your Father which is in heaven: for he maketh his sun to rise on the evil and on the good, and sendeth rain on the just and on the unjust.
For if ye love them which love you, what reward have ye? do not even the publicans the same?
And if ye salute your brethren only, what do ye more than others? do not even the publicans so?
Be ye therefore perfect, even as your Father which is in heaven is perfect.

Matthew 5:43-48 KJV