By Lilla Zuill and Jonathan Stempel
OMAHA, Neb., May 3 (Reuters) - Being a big insurer will cost Berkshire Hathaway Inc (BRKa.N) (BRKb.N) dearly when severe catastrophes strike, but it is a good place to be in the midst of an economic downturn, Chairman Warren Buffett said.
Buffett dispenses gloom at Berkshire fest Washington Post