In response, to cause an informative debate for my knowledge and to spark thoughts of others:
1) Could it be possible that we develop, or understand, what types of molecules penetrate through the multiple "protectors" of the DNA, so that we are able to reach the DNA (As a start) and then correct the sequences? (Symbolically, such as a reverse definition, working from the definition to find the word, instead of looking up the word to find its definition.)
2) --No debate--
3) Could it be possible that we develop a type of cure that does not search for a sequence, but search for a specific molecule or compound that most of the time causes the mutation in a cell's DNA? Instead of looking for ATTAGGCC, the cure would look for the actual mis-print in Adenine itself.
4) I agree, yet I think (by opinion, not through experimentation) that the destruction of a cell would be much more subtle and controlled from the inner parts of a cell rather than the outer parts of the cell, since it could cause destruction among other cells besides the cancerous cell itself. (Symbolically, it would be better and more controlled to destroy a building with detonators from the inside rather than from the outside, since it would harm the other buildings around it.)
The Cancer Curer