Data: Better Business Bureau’s Scam Tracker; Chart: Axios VisualsReports of scams impersonating government agencies to the Better Business Bureau increased in October during the government shutdown, according to an Axios analysis. The big picture: Government agencies, local banks and consumer advocates have been warning all month about scammers using confusion around the month-long shutdown to their advantage.Experts have been bracing for scammers to try to take advantage of vulnerable people during the shutdown — for example…