The Fed’s massive and numerous liquidity facilities are making things worse. The problem is more than banks unwilling to lend to each other, they are also unwilling to borrow from each other. Banks can get all the funding they need (and then some) from their central bank so they do not need to seek a loan from another bank. I believe it has gotten so bad that they don’t even bother to make a decent market for inter-bank loans anymore. No reason to, they don’t need them anymore as central banks have replaced them.