The corroborating circumstantial evidence against Michael would have been pretty overwhelming. NY captain and Sollozzo die, and Mike splits for Sicily. Mike returns and all the heads of the NY families suddenly die, he conslidates power and moves to Nevada. Cicci could have implicated the "buffas" like Pentangeli, who in turn would have imlicated Michael had the perjry trap worked.

A better example of how to set a perjury trap is the way it was done to Bill Clinton. In the Paula Jones case they took his deposition and under the guise of showing a pattern and practice of illicit conduct, they asked him about Monica Lewinski. He lied about this collateral matter, and they had him cold. Monica's testimony and the famous dress. That's how you set a perjury trap.