Did the Potters know the prophecy?

[dcgmck]

No: HPFGUIDX 117409


[snip]

> Now Eustace_Scrubb:
[snip]
> 
> Now what I'd really like to know is _why_ the WW seems to have been 
so quickly convinced that Voldemort was gone and no longer a threat.

dcgmck:

The rapidity with which the WW learned of the Potters' demise, 
Harry's survival, and LV's departure has troubled me as well. Tonight 
for some reason, however, a couple of ideas seeped through:

The WW has a number of means of nearly instantaneous communication, 
from the Floo Network to mirrors like that of Sirius and James to the 
legilemens among them, to name a few. These are in addition to the 
usual means of owls. Then there are at least two newspapers and the 
Wizarding Wireless, both of which would have had special bulletins, 
much the way our television and radio do upon momentous occassions. 

Finally, (and I think I've seen this one on this forum before,) there 
were the Death Eaters like the Malfoys who were only too eager to 
declare themselves suddenly freed from possession and trances when 
they felt Voldemort's mark decrease in the degree of burn on their 
arms. Surely if Snape and Karkaroff could feel the mark increasing as 
Voldemort's power grew in GoF, all the DE's could feel it suddenly 
cool and ease when LV's power was suddenly withdrawn (kinda like the 
loss of Sauron's motivating will in "Return of the King").

Thoughts?