So here's what I don't get (spoilers), can somebody explain...
...the following to me: In the first two episodes, some characters (travelers) could save certain individuals from dying (like the guy who overdosed and the old cop with the heart attack) - but they refuse to so, supposedly because they don't want to change any future events by letting people live who were supposed to die. Yet only hours later they prevent an event which was supposed to kill thousands.
So how does that logic work: Letting one or two people live is supposed to be a risk that can't be taken, but letting thousands of people live who were supposed to die is less of a risk for future events? Does that get explained in later episodes?
http://www.the-fanboy-perspective.com/a-rant-against-modern-tentpole-film-making.html