groups. >> these americans have done absolutely nothing wrong. they do what american and international and geo do in various parts of the world, which is to support democratic development and civil society. >> the united states is now warning the billion 1/2 dollars in aid earmarked for egypt could be withheld if this investigation isn't resolved quickly. >>> tributes are pouring in across britain as queen elizabeth, ii marks 60 years on the throne. tina crouse reports from london. >> reporter: crowds cheered for queen elizabeth on the 60th anniversary of her reign. well wishers gave flowers and gifts and shared a brief personal moment with her majesty. the anniversary of the queen's succession is usually remembered privately since it's the day her father, king george, vi, died, but this year the queen seemed delighted to mark the milestone publicly. she visited schoolchildren and in one class they even set up a royal laundry operation for the queen. students performed a show about the monarch's six decades on the throne. the royal calvary put on a much bigger show with a 41, then a 62 gun sal