Shouldn't a missed calendar alert stay in the "All" section of the notification center in ios 7 until I do something with it? What is happening is that if I miss a calendar alert, it only stays on "All" and "Missed" for 1 hour (the duration of the calendared event). What is the point of this if I come back to my phone after a few hours and have nothing in my "All" section? How am I supposed to know that I missed an alert (other than simply checking my calendar, which kind of defeats the purpose of notification alerts in the first place). I keep reading that the "All" section is just like the old notification center. But I seem to recall that every time I missed alerts in the past they would stay on the notification page indefinitely until I address them. Any thoughts? Or is this the way it is supposed to work. Thank you very much.