Is $100 million too much for one year for one Citigroup trader? That’s what the White House pay czar may decide as he starts his compensation review at bailed-out financial firms. But Citi is arguing that its energy trader deserves the money. Takeaway friend and finance expert Alvin Hall looks at the bank’s argument. And we speak to two people with an opinion: Matt Spaulding is a small business owner in Atlanta; and Judy Coughlin is a clerical worker in Lowell whose union just voted for a pay freeze.