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Nonsense Radiation from CT is a serious concern. A single abdominal or chest CT corresponds to a dose of 5-10 mSv. The is especially a concern for children and in case of repeated scans. For example, see:

http://www.ajronline.org/doi/a...
"In the United States, of approximately 600,000 abdominal and head CT examinations annually performed in children under the age of 15 years, a rough estimate is that 500 of these individuals might ultimately die from cancer attributable to the CT radiation."

Surgically implant explosives shaped as breast enhancement, two small wires concealed by the covering bra, and a modified tape recorder or flashlight as a power source for detonation. I guess the detonator would have to be embedded in the explosives. Go in to the forward bathroom, detonate yourself against the junction of the cockpit and fuselage. You'd stand a good chance of killing pilots, damaging control runs, and you'd blast a hole in the side of the fuselage at a critical juncture point. The wind blast at 500 MPH that far forward would cause some really bad problems.

IT IS NOT POSSIBLE TO DEFEND AGAINST EVERY THREAT. Profiing, a good magnetometer, and improved investigation is the way to make airline travel safer.

I would find the concept of airport MRIs hilarious. Piercings? Gotta come out. Prison tats? Could be problematic, according to House. Implanted pins or artificial joints? No can do. Gun within X yards of machine? Very bad!

http://www.ajronline.org/cgi/content/full/178/5/1092

How about a 3200 year old mummy brain?
warning: pdf link http://www.ajronline.org/cgi/reprint/189/2/W105.pdf

I found a website that talks about using a PDA or cell phone with powerpoint. from the website.
"To allow videotape output, a projection device is typically required for converting and transmitting the videotape signal to an external monitor or LCD projector. Currently, in the United States, there are five companies that manufacture these projection devices: Presenter-To-Go from Margi [1], Voyager VGA CF from Colorgraphic [2], iGo Pitch from Mobility Electronics [3], FlyJacket and FlyPresenter from HP/Compaq [4], and IA Presenter from IA Style [5]."

Here is the link.
http://www.ajronline.org/cgi/content/full/184/4/1356

Has links to each product.Might be what your looking for.

The attractive force that a magnet exerts on a ferromagnetic object is only in part a function of the depth of the hole. The more important function is the steepness of the sides of the hole. A gradual slope will attract objects to the bottom, but a steep slope will be harder to overcome.

Magnets have gotten more powerful. 1.5 Tesla magnets are run-of-the-mill today, and not the highest strength available as was the case 15 years ago. The bigger factor is that MRI systems today now have what's called 'active shielding' which essentially condenses the magnetic field emanating from the MRI into a smaller footprint.

Going back to my hole-in-the-ground analogy, the hole isn't necessarily deeper, but the sides are much, much steeper. Instead of having the gentle slope-to-the-center profile of the bottom of a pond, it's now like a sinkhole, dropping off suddenly.

You might be able to get closer to contemporary magnets before feeling the tug of the magnet, but the distance between the gentle tug and the MRI ripping whatever it is out of your grasp and stuffing it into the hole in the magnet is shorter and shorter.

For things like a backhoe, where the driver won't necessarily feel the little 'tug', it's easy to inadvertently wander into the higher strength part of the field. And the larger the object, the further from the MRI it will be subject to the magnetic attractive effects.(The bigger and more ferromagnetic the object, the bigger and steeper the hole in the analogy)

There are plenty of urban legends around MRI, but I've come to find that most are substantiated. Yes, some are puffed in the retelling, and some are patently false, but my experience leads me to believe that stories are true unless dis-proven (or clearly impossible).

http://www.ajronline.org/cgi/content/full/178/5/1092
http://www.mri-planning.com/videos/video_dl.html
http://www.ajronline.org/cgi/content/full/177/1/27
http://www.simplyphysics.com/flying_objects.html

The attractive force that a magnet exerts on a ferromagnetic object is only in part a function of the depth of the hole. The more important function is the steepness of the sides of the hole. A gradual slope will attract objects to the bottom, but a steep slope will be harder to overcome.

Magnets have gotten more powerful. 1.5 Tesla magnets are run-of-the-mill today, and not the highest strength available as was the case 15 years ago. The bigger factor is that MRI systems today now have what's called 'active shielding' which essentially condenses the magnetic field emanating from the MRI into a smaller footprint.

Going back to my hole-in-the-ground analogy, the hole isn't necessarily deeper, but the sides are much, much steeper. Instead of having the gentle slope-to-the-center profile of the bottom of a pond, it's now like a sinkhole, dropping off suddenly.

You might be able to get closer to contemporary magnets before feeling the tug of the magnet, but the distance between the gentle tug and the MRI ripping whatever it is out of your grasp and stuffing it into the hole in the magnet is shorter and shorter.

For things like a backhoe, where the driver won't necessarily feel the little 'tug', it's easy to inadvertently wander into the higher strength part of the field. And the larger the object, the further from the MRI it will be subject to the magnetic attractive effects.(The bigger and more ferromagnetic the object, the bigger and steeper the hole in the analogy)

There are plenty of urban legends around MRI, but I've come to find that most are substantiated. Yes, some are puffed in the retelling, and some are patently false, but my experience leads me to believe that stories are true unless dis-proven (or clearly impossible).

http://www.ajronline.org/cgi/content/full/178/5/1092
http://www.mri-planning.com/videos/video_dl.html
http://www.ajronline.org/cgi/content/full/177/1/27
http://www.simplyphysics.com/flying_objects.html

Or you carry a loaded firearm into the chamber:

http://www.ajronline.org/cgi/content/full/178/5/10 92