The House Financial Services Committee is scheduled to hold the first Congressional hearing today on fallout from the bankruptcy filing of Global Crossing, whose financial collapse has fueled concerns about accounting practices at some telecommunications companies. Global Crossing, which is based in Bermuda but is managed from offices in Madison, N.J., and Beverly Hills, Calif., filed for bankruptcy protection in late January. The company, which says it has more than $22 billion in assets, has been accused of using questionable transactions to inflate its revenue improperly. The Securities and Exchange Commission and the F.B.I. are investigating Global Crossing's accounting practices....