Harnett v. Azzaro

requiring arbitration of contractual claims before judicial resolution of securities claims | state Department of Insurance powerless to conduct inquiry into the pension benefit status of a participant in the fund | “[t]he burden on one seeking to prove a waiver of arbitration is a heavy one” | ERISA prevents state insurance department from inquiring into pension benefit status of participant | ERISA prevents state insurance department from inquiring into pension benefit status of participant | involving federal securities claims, which arguably are non-arbitrable