Half-blood vs Pure-blood

[Lisa]

No: HPFGUIDX 171712

--- In HPforGrownups at yahoogroups.com, Dantzel Withers <shmantzel at ...> 
wrote:
>
>   Well, people are hardly going to take the time to say 1/16ths-blood 
or whatever.
>    
>   Besides, this line of thinking has happened in RL, ie Nazis 
requiring their citizens to be registered if their genealogy contained 
a single Jew.

Lisa:

JKR's explanation exactly!