On Veterans Day, we celebrate our veterans — more than 18 million strong. We thank you for your service and sacrifice. It’s also a good time to arm yourself with some tips to avoid fraud. We know that scammers follow the headlines, and their schemes evolve to take advantage of the things catching our attention now. Knowing what to look for helps all of us steer clear of a con artist. Thinking of volunteering for a COVID-19 clinical trial? There...