Yet Another Casualty

With the grounding of the US Shuttle Fleet, the Russian Soyuz spacecraft is the only vehicle to ISS. The Russian Government has claimed that the only way that US Astronaut William McArthur will get home is if the US pays the expense. However, because of trade sanctions linked to US fears that Russian technology and know how are being used in the Iran nuclear program, the US will not pay for expenses.

What do we need to do to get our program back on track? Does it take leaving a US Astronaut on ISS to make this happen?