I doubt you'd find many Americans that don't think we should have gone into Afghanistan (short of Michael Moore types). That said, things are improving there. It's a hard slog, but there's a blogger (web log writer) who captures the "good news" in the country.
Link
He also has a series on Iraq. An Australian.
Iraq is trickier, but I think we (America in particular, but the world if willing) needed to go in.
If I told you a leader with access to hundreds of millions in revenue each year:
-attacked two neighbors within four years of each other
-actively targets US patrol aircraft (No Fly Zones)
-attempted to assassinate a former US President (Bush I)
-funds terrorists (Hamas, suicide bombers in Israel, etc)
-harbors known terrorists (Abu Abbas, Abu Nidal, al Zawaqari)
-has numerous contacts with al Qaeda, including (according to multiple debriefs) WMD training
-has, at a minimum the expertise to make and weaponize, the resources (scientists, dual use technology), and the will to use WMDs
-the blood of hundreds of thousands on his hands, and
-made countless threats against the US and our allies
you'd be darn happy if we took him out.
But our mission doesn't end there. We also have a responsibility to help the Iraqi people and the Afghanis. It's no secret the US badly played our hand with those governments and never took aggressive measures to stop abuses. WE owe it to those people and to our national character, to set it right.