At this time, American Airlines seems only to have provisions for two programs for miles donation, Miles for Kids in Need (provides free transportation to seriously ill children and families), and Operation Hero Miles (travel for families of American military men and women who are being treated for injury at military hospitals due to their service in Iraq or Afghanistan).
http://hub.aa.com/en/ju/american-air...inc-aadvantage
http://www.aa.com/i18n/AAdvantage/re.../heroMiles.jsp
Miles contributions are not tax-deductible in the USA (as they are not taxed when earned by travel and purchase activities).
If you know of people in the Boston area who need transport (or who need transport to the Boston area) because they were affected by the terror bombings, you can still use your miles and points to secure award stays and travel for them.