So half of the growth from investment A is rebalanced and put into investment B.

FORBES: Asset Allocation and the Efficient Frontier

The importance of the B-2 is evident when its stealth and long range are put into a strategic-political context.

CENTERFORSECURITYPOLICY: Center for Security Policy | SUMMARY OF THE CENTER FOR SECURITY POLICY��S SECOND HIGH-LEVEL ROUNDTABLE ON THE FUTURE OF THE MANNED BOMBER FORCE