 Like Quinn and Woollard, Frances Kamm (1996, 2007) also appeals to the idea of rights or entitlements. Kamm argues that letting die has two essential properties which can make letting die more acceptable than killing: (1) the victim only loses life that he would have had with the agent’s help at that time; (2) the alternative is for the agent to be interfered with. These features make a moral difference because the victim has a stronger claim (relative to the agent) to what he has independently of that agent’s current efforts. Kamm argues that these features are essential properties of a letting die, but may also be found in some cases of killing and such killings will be morally equivalent to merely letting die. 