Full Idea
Defenders of at least some abortions tend to focus on the early stages of pregnancy, when an embryo is very different from a baby, while opponents tend to focus on the later stages of pregnancy, when abortion resembles infanticide.
Gist of Idea
Defenders of abortion focus on early pregnancy, while opponents focus on later stages
Source
Jonathan Glover (Causing Death and Saving Lives [1977], §9)
Book Reference
Glover,Jonathan: 'Causing Death and Saving Lives' [Penguin 1982], p.119
A Reaction
Seems true. If we ask which part of pregnancy we should focus on, the only plausible picture seems to be 'all of it', despite the confusing picture which results.