ricin

Authorities in Texas now believe a pregnant actress who told FBI agents that her husband had mailed letters tainted with ricin had really carried out the scheme herself.       The letters were sent to President Barack Obama and to New York Mayor Michael Bloomberg, and to his gun-control group in Washington...

Doctors say the toxin allegedly used in letters sent to President Obama and other lawmakers in Washington can kill a person within three days.

Federal authorities have arrested Paul Kevin Curtis, 45, for allegedly sending letters containing the deadly poison ricin to President Obama and Senator Roger Wicker (R.-Miss.) earlier this week.