'It's a perilous choice': I've been offered a part-time job. Do I file for Social Security at 67 or 70?

'Is there any reason I shouldn't go ahead and file?' (Photo subject is a model.) ...

My dad retired last year, and he's now working 2 part-time jobs. They keep him active and social.

My retired dad is now working two part-time jobs. The money helps pay bills and buy 'extras,' like gifts for his grandkids ...