It 's human nature , said , want blame someone natural catastrophic event like pandemic . `` Something bad happens , someone responsible , '' said.Even , Perlman decried use unproven origin theories push agendas . `` I think 's used way much political issue , '' said . `` This politicization unfortunate . `` But Andersen said thinks theories deserve exploration , even ultimately refute . `` It 's important n't dismiss hand , '' said . `` We need look data say 'what data tell us ? 'And data case strong . `` —This story updated hour posted May 12 add quotes Angela Rasmussen , PhD.—On May 13 information added clarify relative distance BSL-4 lab live-animal market Wuhan .