Ok, I haven't been following this case closely, but know a bit about it.
IF you listened to the Websleuths radio show TODAY, you may have a clearer picture of the situation.
The Dad said LE had asked him to NOT talk about the case, ie to media. Mark Klass said that LE did that to him as well when Polly went missing. However, Mark said that with the popularity and influence of the internet, this may be, in other words, old school.
That is why, I gathered IMHO, the dad didn't speak about the broken arm after rumors surfaced about how the child broke her arm, and IF you read the grandmother's statement, AFTER hearing the Websleuth's broadcast, you see the grandmother was trying not to change the perception already out there. But it APPEARS, to ME, that she realized for some reason, it was not the way to go because she KNEW she wasn't there. She was just trying to answer questions to NOT rock the boat, so to speak, of what was already out there.
In her CNN statement, recanting the info she'd given on Friday (?), that she didn't hear anything, she wanted to be clear, TO BE HONEST, that she wasn't there.
It's no one's business where she was. She was NOT there. LE KNOWS. It's only seemingly new info to the public. It seems like she wasn't being truthful. But she was truthful where it counts, to LE. THEY know.
I haven't followed this case daily like many of you, but this is IMHO from today's Websleuth broadcast.
JMHO
fran
PS................
http://www.blogtalkradio.com/websleuths/2012/01/09/websleuths-radio
Websleuth's January 8, 2012 radio program