Controlling stakes in RBS and HBOS?

From the FT website:

Britain was on Sunday preparing to pump more than £37bn into four of the country’s largest banks in a broad-based recapitalisation that could that could see the UK government end up with controlling stakes in Royal Bank of Scotland and HBOS.

Controlling stakes in the two of the largest banks in the country? Do they really need that much capital?

Unbelievable!