The Money View: Can CDS be exchange traded?

The video tutorial explains three scenarios involving credit default swaps. Initially, it describes a broker situation where Paulson buys credit default swaps as an asset. Then, it explores a dealer market-making scenario with Goldman Sachs acting as a dealer. Finally, it details the actual situation where Abacus was the counterparty for Paulson, involving the purchase of risky bonds and treasury bills.

Describe the relationship between Abacus and IKB in the context of the transactions.

What happened to the treasury bills that were bought with the proceeds from the risky bonds?