So a diesel hybrid, in theory, will give you the best of both worlds.

NPR: Hybrids and the 'Halo Effect' of Car Ads

This lends weight to the theory that a viable hybrid population was sustained by interbreeding over a long time.

ECONOMIST: Humans could have interbred with chimpanzees

This hybrid of raising taxes on top earners and retaining the benefits of trickle down theory would slice right down the middle between the moderate Republican and Democratic positions, and would scream for a compromise by the two sides whose mainstreams are really not that far apart.

FORBES: Guest Post: Hybrid Theory

Because each theory has its downsides, many commentators, myself included, have proposed a third way: a hybrid system, designed for the realities of modern international terrorism a new system that would address the needs to protect our classified defense secrets and to assure Americans, as well as our allies, that we are detaining the right people.

CENTERFORSECURITYPOLICY: Center For Security Policy