FBI arrests man for sending over 700 threatening letters to US officials

A man from the midwestern United States is facing federal charges after allegedly mailing hundreds of suspicious letters containing white powder and menacing warnings about treason ahead of the US midterm elections . On Tuesday, Robin Patrick Martin, a 67-year-old Oklahoma City man, appeared for the first time in a US district court after his arrest a day earlier. His charges include conveying false or misleading information or hoaxes, as well as mailing threatening communications. Prosecutors have accused Martin of sending more than 700 letters containing a white powder to hundreds of state and federal officials, including members of the US Congress and election pollsters.