Yep, it's true. On the news and all.
Though all the occurrences related to air travel this year have been tragic and unfortunate, they were in no way related to each other. I believe that i heard the Air Algérie Flight 5017 was shot down, and so was MH17.
MH17 can be singled out as a coincidence, as it was shot down in an airspace that was known to be dangerous (due to the ongoing conflict in Ukraine) and that other planes were avoiding, and was shot down as a result, killing all passengers on board.
Air Algérie is thought to have been shot down, as it was flying within the altitude of the FAA danger zone. It has also been noted that terrorism threats were high in the area, and so AH5017 could have been shot down as a result of carelessness from the pilot and cruelty from the terrorist groups on ground. Another coincidence, in a completely different part of the world than Ukraine. Even the terrorism can't be linked, as the two possible groups have different goals and mindsets.
MH370 simply disappeared - we still have absolutely no idea where it is. Similar to what is going on right now, it disappeared without a trace and vanished off the air traffic radar. It's unlikely it was terrorism, disappearing somewhere in the ocean and being nowhere near any large terrorist organizations or strongholds. Again, it was in a completely different part of the world, and just about on the other side of the planet in comparison to Mali, where AH5017 crashed.
Furthermore, news reports seem to be saying that Air Asia 320-200 was in the same area as dense storm clouds (and at the same time). CTV has said that "there could have been turbulence, lightning, and vertical as well as horizontal winds within such clouds.", which could have increased the likelihood of crashing with such dangerous and violent conditions.
But is air travel unsafe? No. This year is estimated to have around 34.7 million flights, and more than 100,000 per day. 4 flights in 34.7 million have crashed. That's a comparatively small number, and really shows how safe it (mostly) is. Most of these crashes are the result of terrorism, presumedly bad weather, and war. Most of those probably could have been prevented by flying away or around the danger zone (Air Algérie in Mali and MH17 in Ukraine) or steering away from storm clouds (Air Asia, if this is the true cause). But for the most part, the majority of flights are extremely safe and natural causes are extremely unusual as causes for crashes.
I apologise for the wall of text.