Why is cloning embryonic stem cells a holy grail for scientist?

So for years, scientists have been trying to use cloning techniques to make embryonic stem cells that are essentially a genetic match for patients. The idea is that such a close match would prevent their bodies from rejecting the cells. "It's been a holy grail that we've been after for years,"

Explanation:

in the shadow of war

i believe its a. the idea that women need protection from men is a myth.