Kind of vague, but the date may indicate a joke about Anthony Weiner. This was right after CNN broke the story of Huma being pregnant and a day before Weiner issued his tearful on-camera apology.
Time to get in the haz mat suits,
From:JPalmieri@americanprogress.org
To: john.podesta@gmail.com, ntanden@americanprogress.org
Date: 2011-06-10 21:11
Subject: Time to get in the haz mat suits,
Bust in that house and get Huma the hell out of there.
https://www.wikileaks.org/podesta-emails/emailid/45887#efmAAGAA8