LightSquared’s bankruptcy has hit another milestone: $2 billion in losses since Philip Falcone’s wireless venture filed for chapter 11 protection in May 2012, the Wall Street Journal reported today. In a bankruptcy court filing on Wednesday, LightSquared said that it lost $72.7 million in March, bringing its total loss since filing for bankruptcy to $2.07 billion. LightSquared’s biggest expense in March was interest on some of its debt: $41 million for the month and $1.22 billion since the bankruptcy.