The threats arrived just a week after Yee, D-San Francisco, called on radio personality Rush Limbaugh to apologize for mocking the Chinese language during his radio program last week.
Yee says he has been threatened before, but because of the recent shooting of Rep. Gabrielle Giffords, D-Ariz., in Tucson, he is now taking such threats more seriously.
Yee is also calling for a boycott of companies that advertise on Limbaugh's radio show.
