Speakers at a symposium on homelessness sponsored by Concordia College, a Lutheran institution, said homelessness in America has reached epidemic proportions and is bound to get worse.
Large hail fell in Kansas near Concordia, Washington and Fairmount.
Crossman said federal charges would be filed against the Concordia only if solid evidence was presented by Canadian officials.
The listing had been scheduled for November. Another recent victim was Concordia Paper, which produces recycled packaging and paper.
The snakes are favorites of Concordia biology instructor Elinor Torstveit.