Our Scotland Political Editor Peter MacMahon spoke to the Prime Minister during his visit to the Scottish Conservative Conference.
Watch the full interview on independence - and how it could affect the border - here:
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Eleven bus routes in the Scottish Borders could be cut by the company First Group, which wants to "focus resources" on other areas.
Organisers say they are saving money for next year, when they hope the event will take place on closed roads in the Borders.
The England all-rounder is "devastated" to be missing the rest of the series against Sri Lanka after he underwent knee surgery on Tuesday.