New litigation against the former trustee and former investment service provider of four pension plans reminds employer or other employee benefit plan sponsors, business owners or management, investment advisors and others serving as fiduciaries or advisors of employee benefit plans of the need to ensure that employee benefit plans are only used for the benefit of participants and beneficiaries, and prudently and properly invested and administered.  Businesses sponsoring plans and their leaders, as well as others serving as fiduciaries or investment advisors are cautioned that mishandling of plan assets or investments can create significant liability both for those who improperly handle plan responsibilities and the employer or other plan sponsor, business owner or management, and others who are involved in their selection, oversight and retention.  Consequently, parties should ensure act prudently to ensure plan assets are only invested prudently and for the sole benefit of the plan and its members…