Today, my office received a suspicious envelope, potentially containing anthrax — an attempt to intimidate and silence me,” ...

The envelope was sent to the FBI for tests ... the antibiotic used to treat anthrax, should be made available immediately for government use even though German drugmaker BayerAG holds the patent ...

She said the envelope was "clipped," meaning it was run through a machine that irradiates all the mail that comes to Capitol Hill -- standard procedure ever since the 2001 anthrax attacks.