[staytrue]

I think the police should be able to ask for ID, if they have probable cause.

That is if you are speeding, the police need to know who to write the ticket to.

If you are doing nothing, then the police should not be able to ask for ID, just because they feel like it.

Of course, there will be a grey area in what defines "probable cause".

[freeeee]

I think the police should be able to ask for ID

They can whatever they like, even what your favorite color is. The issue is whether or not the law compells you to obey an order to identify yourself, and under what conditions that order can be given.

Free countries by definition do not send armed agents of the state to detain and demand papers from people who lack concrete individualized suspicion of a crime (known as probable cause).