This week "Sunday Morning," hosted by Jane Pauley, feature David Pogue's cover story on the latest in hearing aids. Plus: Rita Braver looks at the Alvin Ailey American Dance Theater, celebrating its 60th year; Faith Salie meets a real live mermaid; Michelle Miller talks with the rapper and actor Common; Pauley profiles Oscar-winning actress Julianne Moore; Jim Gaffigan has some thoughts on decaf coffee; and Alina Cho checks out fashion at your fingertips: nail art.