U.S.-made weapons systems are also hard to kill off because of the political damage cancelations would do with buyers such as Britain, Italy and the Netherlands.

FORBES: Magazine Article

Vultures Are Hard to Kill Will a sacred ritual of Hollywood--the script pitch--make it on-line?

FORBES: The Informer

The fact that a trusted family doctor could kill so many of his patients was hard to believe, let alone understand.

BBC: NEWS | UK | Shipman taking control of his own death

The prickly dynamic between Ms. Harris and some of her followers highlights how hard it can be to kill a successful series.

WSJ: How to Kill a Vampire (Series)

The problem with the lump-of-labour fallacy is that it is so hard to kill.

ECONOMIST: Why the old should not make way for the young