An American summer camp empire filed for bankruptcy after the owners, David and Michael Shabsels, missed their payments to bondholders in Israel and transferred $34 million to themselves. Simad Holdings, the owner of about 30 popular summer camps such as Camp Blue Star and Mohawk Day Camp, filed for Chapter 11 bankruptcy in New Jersey on June 4, listing 50,000 to 100,000 creditors and $500 million to $1 billion in liabilities.