Raja arrested

Finally the government has acted and arrested the tainted former telecom minister A Raja. But there is still a long way to go.
This arrest has only set to rest that he had prima facie done something wrong. But wasn't he a part of the union cabinet? Shouldn't the cabinet and its chief Prime Minister Manmohan Singh also be punished for overlooking such a scamster?
These are question s that have to be answered. It will not help it the Congress doesn't fix responsibility. The country needs answers and the government needs to explain all issues.