Raise the Titanic?

Ever since the ship sank in 1912, lots of people have tried to raise Titanic. They failed mostly because of money reasons, of course. Here is a list of ideas:

• Fill the ship with ping pong balls and let it float up to the surface. Why doesn't it work? Because, think of this. How do we get them INSIDE the wreck? We can't open a door in a submersible that far down, we'll drown to death and die from water pressure. And we can't drop them from a ship, because they will just float away. Even if we somehow do fill it up with ping pong balls, the pressure will crush them. Plus, the ship is in 2 pieces. The ping ping balls will just float out of the ship. 
• Someone came up with a idea to pump the ship full of molten wax and wait for it to harden, then let the ship float to the surface. Now, wax freezes at 45 degrees Fahrenheit and we know the Atlantic ocean is WAY colder than that. So the wax hardening part is correct. But think of this. First, how are we supposed to pump wax into the Titanic anyway? Second, the Titanic is in two pieces. The wax will just float out into the ocean. 
•  Now, back in the day when they thought the ship sank in one piece someone had the idea of turning the Titanic into an iceberg. How? Well, it was a bit complicated. First, they would wrap the whole ship in a strong wire mesh, creating a gigantic basket of sorts to hold her. Liquid Nitrogen would then be pumped throughout the entire ship, which would presumably cause her to freeze solid. Titanic would then float up to the surface. Of course, this theory can never happen. Why? Because the temperature of the water at the Titanic's wreck site is believed to be 28 degrees. Liquid nitrogen freezes at -346 degrees Fahrenheit. The moment they pumped the liquid nitrogen into the ship, it would just dissolve. Plus, the ship is in two pieces.

All these theories are crazy. Of course, there is a lot more. Just look it up. But why try to raise it when you have a virtual map of the wreck site? Here, have the link: http://www.rmstitanic.net/expedition/.