As I said, the risks of any kind of leak, and ultimately of any kind of threat to human health from putting the CO2 back into the atmosphere is very low. Still, as with any known conventional gas project, you need to figure out the various forms of liability. So in the unlikely event a leak occurred, there is a liability there for remediation or any kind of environmental impact. Landowners, of course, need to feel comfortable with CO2 pipelines either crossing their ground or going into an oil and gas reservoir, a saline aquifer, beneath their ground.
I don't want to run roughshod over landowners and their rights, but from what I've seen, they're a lot more worried about sour gas and what the sour gas well next to their land is going to do than about CO2.