The sender of the letter is expressing concern about the impact of high interest rates on obtaining loans for their company's expansion plans. They mention that Industrial Revenue Bonds (IRBs) are crucial for accessing low interest loans, and without them, they cannot finance their anticipated expansion. The sender opposes any restrictions to the IRB program and believes that Congress should be encouraging such programs to address national problems like loss of productivity and competition from foreign companies. They request the recipients opinion on the issue.