Is precisely the question the Daily News is asking.

Was it the Union? Someone within the Court of Appeals? Someone who knew A-Rod tested positive?

There are four squealers. Four people who cited themselves as independent sources to Sports Illustrated. All four could come from a single place or from different organizations.

Teri Thompson says this:

The roster of candidates who knew that the game’s biggest superstar was on the list and were willing to violate a gag order imposed by the court is short: a scorned player or teammate, a rogue union official, a vengeful prosecutor or federal agent or even somebody close to the player himself. The A-Rod ‘roid story could only have come from a handful of organizations and people who had knowledge of the 2003 drug testing results.

We may never find out. What we do know is that A-Rod’s 48-hour silence is deafening.