I've seen that stated a number of times, but don't know the source. Can anyone validate it is true?
Saudi News Site: Michelle Obama Visited Saudi National in Hospital on Thursday
A lot of the narratives about the Tsarnaevs are from only one source and endlessly repeated. The Michelle story is from a single Arabic language newspaper and not even bloggers identify any witnesses or other sources.
http://shoebat.com/2013/04/19/report-alharbi-visited-by-michelle-obama-in-hospital/
http://boston.cbslocal.com/2013/04/18/obamas-visit-boston-marathon-bombing-victims-at-hospitals/
http://www.okaz.com.sa/new/Issues/20130418/Con20130418591717.htm