So why didn't they do this when he was indicted instead of waiting for him to cut a deal and promise to turn over all his e-mails and records? Timing is oh so important in strategic matters. Did they think that when he was 'merely' indicted they could still hide the connection and keep the money? Are they now afraid of the connection being made? Of course they did, and of course they are.
Nostradamnthem thinks it's fairly obvious that those who got the contributions from Abramoff are connected to the bribery and 'pay for play' access. That was his business. It's basically the business of any lobbyist. And those who are suddenly tossing up those contributions are afraid of being connected and will plead innocent of any knowledge. So let's wait and see what the e-mails show.
Remember, if the investigation is suddenly killed or goes silent, it'll be because of what's in those e-mails. Hastert doesn't have the authority over Justice do to it either - only 'Gonzo' Gonzales and the White House do. You don't need to read those e-mails to know the White House was involved if it all goes hush-hush suddenly, because "you don't need a weatherman to tell which way the wind blows".