The information here is directly from the U.S. State Department as of May 4, 2020
If you are thinking about applying for or renewing a U.S. passport now for international travel, please read the Department of State’s current international travel advisory. Because of public health measures to prevent the spread of COVID-19, we have extremely limited U.S. passport operations.
If you apply or renew now, you will experience significant delays of several months to receive your U.S. passport and the return of your citizenship evidence documents (such as birth certificates or naturalization certificates). Unless you have a life-or-death emergency, please wait until we resume normal operations to apply for or renew your passport.
As the State Department has a new program called STEP:
This is for those of you who already have passports, you can sign up, whether or not your are traveling at this time.
Subscribe to get up-to-date safety and security information and help us reach you in an emergency abroad.
TSA Cares Program
TSA Cares is a helpline that provides travelers with disabilities, medical conditions and other special circumstances additional assistance during the security screening process.
Call 72 hours prior to traveling with questions about screening policies, procedures and what to expect at the security checkpoint.