Keystone

I know, Q told us:

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Key - unlocks the door of all doors (info)

Stone - the force / strength capable of yielding power to act on info

Key+Stone=

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But since everything seems to have double meanings, I cannot let go about the Keystone Pipeline. And now, April 7. Q mentioned wrote:

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Border states are VERY key.

Bigger than you can imagine.

The pipeline.

Not R vs D.

CA is special.

Public will learn.

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He mentioned "The pipeline". So I tried to look into the Keystone Pipeline again and did the little map on the left. Do you think, we should dig more?