As of February 2011, the Supreme Court has not addressed the validity of requirements that a detainee provide information other than his name, however some states such as Arizona have specifically codified that a detained person is not required to provide any information aside from their full name.
do you have to identify yourself to police in arizona?
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Answer: yes

Designed by Populous and Foster and Partners, the stadium is crowned by a 134-metre-high (440 ft) Wembley Arch which serves aesthetically as a landmark across London and structurally with the arch supporting over 75% of the entire roof load. The stadium was built by Australian firm Multiplex at a cost of 798 million (1.09 billion today). Contrary to popular belief, Wembley Stadium does not have a retractable roof which covers the playing surface. Two partially retractable roof structures over the east and west end of the stadium can be opened to allow sunlight and aid pitch growth.
can they close the roof at wembley stadium?
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Answer: yes

Lane splitting is riding a bicycle or motorcycle between lanes or rows of slow moving or stopped traffic moving in the same direction. It is sometimes called lane sharing, whitelining, filtering, or stripe-riding. This allows riders to save time, bypassing traffic congestion, and may also be safer than stopping behind stationary vehicles.
is it legal for motorcycles to split lanes and drive between cars?
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Answer:
yes