On Monday, February 16th, the ABA will webcast its deliberations concerning the proposed amendment to Model Rule 1.10. The link to the webcast is here.
This is a contentious issue. Prof. Andrew Perlman has posted a short comment over at Legal Ethics Forum.com in which he provides some good links to posts for and against the notion of screening.
As he explains, "[t]he issue is difficult, in part, because it is hard to know just how dangerous a screening provision is. . . . If lawyers will breach the screen with any kind of frequency . . . the screening provision is a bad idea. If a breach of the screen will occur in very few cases, the benefits of screening probably outweigh the costs."
Prof. Perlman's comment is available here.