I do a ton of international travel with a ton of gear.
There will come a time when some gear will have to be checked or be out of your sight.
It will happen.
The only way to avoid that reality is to carry such a small amount of gear, that you won't get hassled as far as carry on.
Unfortunately/fortunately, I don't buy camera gear to leave at home so I have massive amounts of gear that I take with me.
UK 2012 Adventure
Take as much gear as possible on your person, and what you can't take and have to check-in, make sure that you layer your protection, and take into consideration if your bags are going to be out in the weather or crushed.
I don't recommend putting anything wrapped with clothes that will be gone through if the x-ray reveals something the TSA/Security folks have to search for. The TSA/Security folks will grab a piece of clothing, and if your lens rolls out of it onto the concrete, then "oh well".
It's much better to have a "checkable" piece of luggage that is specific to your camera gear.
TSA/Security inspections are hardly done alone.
If someone opens your case, and the only things in it, are camera gear, then anyone that sees the inspector putting something in their pockets will know it wasn't a pair of underwear!
Many people recommend the Pelican case route, but a Pelican case SCREAMS, "Hey, look at me! I have something valuable and delicate inside!".
I prefer bags that look like the thousands of other black bags that go through the airport each day.
Kinda "Nothing to see here".
I use the products from Think Tank - especially the Airport Security v2.0.
Airport Security V2.0
The bag holds a ton, and I can customize the dividers. I also put my lenses into their respective bags so I have another layer of thermal/shock/moisture protection.
Also having the lenses in cases/bags gives me a little more protection in that the inspector doesn't see exactly what lens it is without taking it out of the bag.
If they take too much time going through my gear, someone will notice.
Ultimately I mix various think tank products and carry as much as I can on the plane with me.