Thomas Schreiner's new book (Faith Alone - The Doctrine of Justification: What the Reformers Taught . . . and Why It Still Matters) has caused a bit of a stir. Not because of anything Schreiner wrote. No, it's John Piper's foreword (specifically his comments on justification and works) that sparked the controversy.
The foreword can be found at this link.
Criticisms of Piper can be found at the following links:
In Defense of Piper