Here's a trading strategy: become a Congress staff member

This via Robin Hanson:

Ordinary folks are banned from "insider trading." For example, someone who noticed a factory fire via an airplane window was convicted of insider trading for trading on this info before it was publicly announced. But (...) the US Congressional representatives, and all their staffers, have long been explicitly exempt from these rules--the SEC is not authorized to regulate Congress, and Congress has not chosen to regulate itself. So Congress-folk regularly profit by trading on inside info they gain from interactions with industry representatives. So much so that their average return on investment is far larger than the public's.

I wonder what rationalizations they have for this blatant injustice.