the federal government targeted a compuond with children in it, or do you idiotically believe that they had no knowledge of those kids?
ISIS used children as human shields, and blew up the building they were in. The reason the US military used ground forces was to minimize children's deaths. Americans risked their lives to save the children of ISIS.
Meanwhile, McViegh targeted children. He could have killed more government bureaucrats, but he wanted more children dead.