U.S. Treasury yields are hitting new highs for the year on fears about inflation and excessive debt. Rising yields create opportunities—along with serious portfolio risks.

U.S. Treasury yields are hitting new highs for the year on fears about inflation and excessive debt. Rising yields create opportunities—along with serious portfolio risks.

The recent rise in long-term U.S. Treasury yields isn't a cause for concern but the debt situation is becoming increasingly unsustainable, DNB Asset Management's Ingvild Borgen…