While cloning stem cells is a technical breakthrough, there's already a method of deriving embryonic-like stem cells that doesn't require the use of embryos at all: induced pluripotent stem (IPS) cells, said Dr. George Daley, who is director of the Stem Cell Transplantation Program at Children's Hospital Boston and an international expert in stem cells.

CNN: Cloning stem cells: What does it mean?

Chertoff goes on to suggest obliquely that demonstrating retaliatory capability in this way might be one method of deriving a deterrence function from US technical superiority in this field.

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MasterCard also provides customers its network and technical infrastructure to carry out transactions in a fast and easy method.

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