Canada and the U.S. are separated by a porous, 5,525-mile border with at least 120 road crossings.
Michael Zehaf-Bibeau was identified as a suspect in the shooting at the National War Memorial in Ottawa, Canada, on Wednesday.
Cirillo, 24, was a reservist from the Argyll and Sutherland Highlanders of Canada regiment in Hamilton, Ontario.
Amber Vinson's family said the Dallas nurse is cleared of Ebola, but statements from Emory University Hospital and the CDC didn't verify that.
A policy of imposing racially based lockdowns after riots will come to an end.
Fans too impatient to not download free, pirated copies of "Guardians of the Galaxy" aren't alone.
Ebola has killed just one person in the U.S. and infected two others, yet it dominates headlines across the country.