As you all know, Grewal has gone on stress leave. For background on what stress leave is and how it works for parliamentarians, see this Globe and Mail story.
There is some new stuff about Grewal's wife Nina Grewal, also a parliamentarian, see here.
Maritime Liberal saw it first: an old story has resurfaced about Grewal's immigation. See now the story in the National Post. (Some of the comments on this story are in an earlier thread.) See also the blog entries at My Bhlahg (who was one of my favorite bloggers before I got my own and had no time to read them anymore) and Mark at Section 15, both via Progressive Bloggers