Things worth reading: 4th May 2015
Things we're reading today include … Westpac results miss expectations UBS and Credit Suisse could combine investment banks: investor Precarious prospects of London finance New legal challenge to banks' swaps redress scheme Buffett celebrates 50th year at Berkshire, faces tough questions HSBC's HQ rethink: taxes and China relationship hold key to decision HSBC whistleblower Falciani…