Dear Pres­i­dent,
 
On behalf of the entire catal­y­sis com­mu­ni­ty, I would like to express our sin­cere com­pas­sion to our Amer­i­can col­leagues and to the peo­ple of the Unit­ed States. We are sad­dened and shocked by the numer­ous deaths and the suf­fer­ing due to the trag­ic events which have struck your coun­try. More than ever before, it is nec­es­sary to con­ju­gate our efforts through edu­ca­tion, col­lab­o­ra­tion and friend­ship to con­struct a bet­ter world and pre­vent this type of tragedy.

With warm per­son­al regards, Sin­cere­ly Yours,
 
Tres cor­diale­ment,
 
Michel Che
Boris Ime­lik Pro­fes­sor of Sur­face Reac­tiv­i­ty and Catal­y­sis
Insti­tut Uni­ver­si­taire de France
Pres­i­dent of the Inter­na­tion­al Asso­ci­a­tion of Catal­y­sis Soci­eties (IACS)