New rules for sunscreens

From The New York Times comes this reading comprehension acitivity about new rules and regulations in the US for sunscreens and sun lotions, with an aim to provide users with more accurate protection against sun rays.

Go to the main article here and try to answer these questions by reading it:

WHO is “thrilled” about the Food and Drug Administration’s new rules for sunscreens?
WHAT are UVA and UVB rays?
WHERE are some agents that are not approved in the United States approved elsewhere in the world?WHEN did rules for sunscreens first come under consideration for federal regulation?
WHY are SPF numbers higher than 50 largely “pointless”?
WHY can’t the new regulations address the most common problem with sunscreens?
HOW big, in dollars, is the domestic market for sunscreens?
HOW many people are treated in the United States each year for the two most common types of skin cancer?