Manipulation of the London Interbank Offered Rate could have resulted in lower interest rates for subprime ARM borrowers, according to Laurie Goodman, a senior managing director at Amherst Securities Group. Interest rates on close to 80.0 percent of subprime ARMs outstanding in May were linked to LIBOR, according to data from Lender Processing Services, whose data covers about two-thirds of outstanding mortgages. As of the end of May, 70.3 percent of eligible second liens have received a modification via ... [Includes six briefs]