Canadians travelling to the U.S. have been warned to “expect scrutiny” at the border, including the possibility that border officials may search their electronic devices and detain them for questioning. Matt Galloway talks to immigration lawyer Heather Segal and cybersecurity expert Ron Deibert about what Canadians should think about before travelling, whether you should bring a burner phone — and what your rights are as a visitor to the U.S.