Blue ray
Calm down Bro.......
These are 3 precautionary landing that the flight crew have decided to make in the interests of safety. These sorts of events are surprisingly frequent among ALL airlines around the world. The only special thing about these particular ones is that despite global economic doom and gloom it has been a quiet day for news and the media have run with it.
A newsworthy story would have been if there were smoke / fume events and the aircraft didn't divert!
T'Bug