San Bernardino, Calif., has failed to make more than $6 million in payments to the state's powerful public employee pension fund, heightening speculation of a high-stakes showdown between the fund and other creditors as the city seeks eligibility for bankruptcy protection, Reuters reported yesterday. Since July 31, the day before San Bernardino declared bankruptcy, the city has failed to make six biweekly employer contribution payments of more than $1 million to the California Public Employees' Retirement System (Calpers). The action taken by San Bernardino is in stark contrast with two other California cities - Vallejo, which emerged from bankruptcy in 2011, and Stockton, which is seeking bankruptcy protection. Both cities decided to keep current on all payments to the pension fund.