print "Welcome, Mr. President." if from_whitehouse.gov();

instead of 

launch_nukes() if found_file("/bin/laden");

##</code><code>##

run_program() unless user_is_idiot();

open_file() or die;

##</code><code>##

print "Welcome, Mr. President"
{
  launch_nukes();
  send_ground_troops();
  enjoy_a_milkbone_in_a_commie_free_world();
}
unless password_failed();
#This can be bad. You have to read so many lines, get 
#confused, then go back and figure out where the block 
#began. Pain in the patukis.

##</code><code>##

if (expr)  {b()}