Last month, the association of Russian-American scientists - RASA - was named “unwelcome” by the Russian Federation, alongside @UCBerkeley, @Stanford, and previously @Yale. Last Friday, I was personally designated in Russia a foreign agent — a label used to silence, discredit, and harass individuals who speak inconvenient truths. I did not expect this to be without cost. In times of global disruption, science and scientists are increasingly under attack. I ask colleagues and friends across the globe: speak up for what you believe, and stand your ground. If we do not, what are we living for? @sahayg1 @Joseph_DeSimone @SMitragotri @H_Ghandehari @JulieNguyenLab @AviSchroeder @RFreeman_Lab @MariaJVicent1 @sguriev @k_sonin @RFreeman_Lab @UNCPharmacy