As long as the liquid fuel remains liquid, it won't even burn. It must be atomized and evaporate and then the fuel becomes conbustable once there is also a sufficient oxidizer (oxygen in air is the typical one).
In this case, Mythbusters fired into full tank, so it is much safer than if they had shot into 'almost empty' tanks.
I live in an agricultural area, and we had a fire in a storage barn a hundred or so feet from our house. We were thankful that a couple of fuel tanks (gasoline and deisel) were filled the day before a fire that night. Much less fumes in the tanks, making them safer even for the fire fighters to keep cool, during the course of the blaze. (They were 2, raised 250 gallon tanks for farm equipment.) Since then the tanks (still in use) but have been moved to a more remote location (near where the tractors, etc are stored now).
Movies make the explosions more spectacular than they would 'naturally' be, but they do make for great 'action sequences'. Of course, that is why they are done in the first place.
On the subject of explosions, the best 'explosion' I ever saw (an the only time I fell out of my chair laughing), was watching a engineering contest at Purdue picnic, when a 'fire starting' contest was handled. Some 'clever engineer' started a hibachi on fire, and poured a thermos of liquid oxygen on it. It generated a huge mushroom cloud. They took the camera up to see what was left of the Hibachi, and it was still boiling aluminum in a puddle on the ground. (No one was hurt, but Purdue University has forced the staff to remove the video from view. I saw it in the early days of the internet, when colleges and big businesses were the only ones with 'net access'.)
It doesn't take a liquid to 'explode', just the right combination of fuel, oxidizer in a rapid burning combustion.
We do have a 'overseeing agency' called 'Homeland Security'. I don't trust them either.
As Pogo said: "We have met the enemy, and he is us."
64G isn't to much for these device to handle, and having a 'library' or several larger cards would be nice for 'special needs' (movie libraries, detail CAD files of the Empire State Building or Golden Gate Bridge, or latest killer development you plan on selling on Etsy or your next killer Kickstarter campaign, while not mixing them with your complete internet cat photo collection!) would be useful.
Is there a need for bigger and smaller displays? Yes. We do 2" screens to 60+ inch displays all in the home. To carry about, IMHO, there are a few 'critical sizes'. The 'shirt pocket', the 'hand carry', and the 'in the backpack' sizes. Shirt pocket can be small to an iPhone/Android screen phone size. Hand carry is the mini-tablet, 7" or so, I keep thinking that there was a reason why Amazon make the kindle that size and it became their most popular model. It is convenient, it fits in a large pocket or purse, and is a 'thin' novel size. The larger 'backpack' size can be from the large iPad to a 'Windows Surface' to to a full laptop. The 'netbook' fit into the same size as the mini-tablet, but unless you have one that can work with or without the keyboard, the tablets with 'optional' keyboards seem to be a good solution. Still even the netbook is a neat toy to have and covered that range for 'high function' before the full-function tablet technology caught hold in a big way for that form factor.
Many of us still find the keyboard easier to use when writing the great american novel or doing things like posting on slashdot, but the on-screen and blue-tooth addon keyboards for the tablets help a lot when not -on the move- when reading/content consumption rather than generating content is the primary task.
I would still like to try one of the laser projection keyboards, but my toy money only goes so far.
These kinds of technologies are not 'either-or' but both. I still like my desktop (big monitors, all my high power goodies at one spot) but it turns into my server more often anymore. A host for my 'local cloud'. ( My internet connection is slow and expensive for bandwidth, and cable/dsl/Wimax are not options here due to physical location, I may be going satellite soon unless something happens. )