Two rival camps have formed following the wreck's discovery: the "conservationists", championed by RMS Titanic Inc.'s George Tulloch (who died in 2004), and the "protectionists", whose most prominent advocate is Robert Ballard. The first camp has argued that artefacts from around the wreck should be recovered and conserved, while the latter camp argues that the entire wreck site should have been left undisturbed as a mass grave. Both camps agree that the wreck itself should not be salvaged – though RMS Titanic Inc. did not stick to its proclaimed "hands-off" policy when it managed to demolish Titanic's crow's nest in the course of retrieving the bell.[47] Its predecessor Titanic Ventures agreed with IFREMER that it would not sell any of the artefacts but would put them on public display, for which it could charge an entry fee.[151]