Perhaps Boeing should ground all 777’s indefinitely, considering. It might also be smart of Israel to ban any 777’s from flying within 100 miles of it’s border - also indefinitely. For all we know this plane is now hiding in plain sight, in a maintenance hanger, for instance.
We can only hope they watch every 777 coming near us...knowing our PC government, they will consider it racial profiling to ban any flights from certain countries with 777s
Where are the passengers?
The plane identifies itself when airborne so if that feature is disabled then the only 777 in the air that does not identify itself is our mystery plan. So I think the plane would have a hard time penetrating a protect airspace.
My theory: Those chose this aircraft and flight for a reason. The 777-200ER has very quiet engines and so it could land in the early morning hours and not attract a lot of attention...and the flight time would put it over the middle east in the 3-4 AM timeframe.
My theory, if it was state sponsored (Iran), is that they have thought about your concerns. IF I were planning this op...I would land it where I could hide it...and repaint it...then load whatever I wanted to on it (nuke? Dirty material?). It would be somewhere near a known air route. So for instance...If I knew (not hard to figure out) there were 777-200ER flying from Singapore or Manila to Jerusalem...I would paint it in Singapore Air colors and give it one of their tail numbers. Then at the designated time...I would "switch" the aircraft by shooting the Singapore Airlines 777 down...and let MH370 continue towards the designation.
You have to know that if this is a hijacking and its landed somewhere...they've thought through the end game. And part of that end game planning is how do you sneak it in when people are looking for it. This is how I would do it.
Add to this all the talk in the last week from Iran saying the liberation of Jerusalem is close. Perhaps they DO have a nuke....but its not to the advanced stages that we have where it could fit on top of a missile...but resembles Fat Man or Little Boy...and thus would need to be put on an aircraft with lots of lifting capabilities.