Rearrange the parts of the sentence in correct order.
Their judgment can be
P-easily swayed by false
Q-propaganda, as is being done
R-right now across the country

The sentence segment "Their judgment can be" requires a passive verb form or adverbial modifier.
Part P ("easily swayed by false") logically follows the auxiliary verb structure "can be".

The word "false" at the end of P logically qualifies the noun "propaganda" in part Q.

Part R ("right now across the country") provides the time and place context for the actions mentioned in Q.
Thus, the correct sequence is PQR.