Sorry Holmes, but "social justice" does have some meaning. Maybe as it is bandied about now it has no bite, but the term has roots in Catholic, specifically Jesuit tradition. Not that I remember my indoctrination days all that well, but quick perusal of Wikipedia associates it with "life and dignity of the human person", and "preferential option for the poor and vulnerable".
Ethicists long ago figured out how to make decisions that respect such high-minded and abstract principles, so long as you admit that there are tradeoffs involved. You can even imagine a society that operates with those as some of its core values, although that might be bordering on crazy-talk.
From Think Progress, April this year:
Fifty-six percent of domestic terrorist attacks and plots in the U.S. since 1995 have been perpetrated by right-wing extremists, as compared to 30 percent by ecoterrorists and 12 percent by Islamic extremists.
Maybe in air travel incidents you're correct (dunno, haven't looked into it), but the basic insinuation that all terrorism originates from Islamic extremists is misleading.
For God's sake, stop researching for a while and begin to think!